chrome/browser/plugins/plugin_power_saver_browsertest.cc - chromium/src.git - Git at Google

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #include "base/command_line.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "components/ui/zoom/zoom_controller.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/ppapi_test_utils.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/gfx/geometry/point.h"

 namespace {

 std::string RunTestScript(base::StringPiece test_script,
                           content::WebContents* contents,
                           const std::string& element_id) {
   std::string script = base::StringPrintf(
       "var plugin = window.document.getElementById('%s');"
       "if (plugin === undefined ||"
       "    (plugin.nodeName !== 'OBJECT' && plugin.nodeName !== 'EMBED')) {"
       "  window.domAutomationController.send('error');"
       "} else {"
       "  %s"
       "}",
       element_id.c_str(), test_script.data());
   std::string result;
   EXPECT_TRUE(
       content::ExecuteScriptAndExtractString(contents, script, &result));
   return result;
 }

 // This also tests that we have JavaScript access to the underlying plugin.
 bool PluginLoaded(content::WebContents* contents, const char* element_id) {
   std::string result = RunTestScript(
       "if (plugin.postMessage === undefined) {"
       "  window.domAutomationController.send('poster_only');"
       "} else {"
       "  window.domAutomationController.send('plugin_loaded');"
       "}",
       contents, element_id);
   EXPECT_NE("error", result);
   return result == "plugin_loaded";
 }

 // Also waits for the placeholder UI overlay to finish loading.
 void VerifyPluginIsThrottled(content::WebContents* contents,
                              const char* element_id) {
   std::string result = RunTestScript(
       "function handleEvent(event) {"
       "  if (event.data.isPeripheral && event.data.isThrottled && "
       "      event.data.isHiddenForPlaceholder) {"
       "    window.domAutomationController.send('throttled');"
       "    plugin.removeEventListener('message', handleEvent);"
       "  }"
       "}"
       "plugin.addEventListener('message', handleEvent);"
       "if (plugin.postMessage !== undefined) {"
       "  plugin.postMessage('getPowerSaverStatus');"
       "}",
       contents, element_id);
   EXPECT_EQ("throttled", result);

   // Page should continue to have JavaScript access to all throttled plugins.
   EXPECT_TRUE(PluginLoaded(contents, element_id));
 }

 void VerifyPluginMarkedEssential(content::WebContents* contents,
                                  const char* element_id) {
   std::string result = RunTestScript(
       "function handleEvent(event) {"
       "  if (event.data.isPeripheral === false) {"
       "    window.domAutomationController.send('essential');"
       "    plugin.removeEventListener('message', handleEvent);"
       "  }"
       "}"
       "plugin.addEventListener('message', handleEvent);"
       "if (plugin.postMessage !== undefined) {"
       "  plugin.postMessage('getPowerSaverStatus');"
       "}",
       contents, element_id);
   EXPECT_EQ("essential", result);
   EXPECT_TRUE(PluginLoaded(contents, element_id));
 }

 }  // namespace

 class PluginPowerSaverBrowserTest : public InProcessBrowserTest {
  public:
   void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitch(switches::kEnablePluginPowerSaver);
     command_line->AppendSwitch(switches::kEnablePepperTesting);
     command_line->AppendSwitch(switches::kEnablePluginPlaceholderTesting);
     command_line->AppendSwitchASCII(
         switches::kOverridePluginPowerSaverForTesting, "ignore-list");

     ASSERT_TRUE(ppapi::RegisterPowerSaverTestPlugin(command_line));
   }

  protected:
   void LoadHTML(const char* html) {
     std::string url_str = "data:text/html;charset=utf-8,";
     url_str.append(html);
     ui_test_utils::NavigateToURL(browser(), GURL(url_str));
     EXPECT_TRUE(content::WaitForRenderFrameReady(
         GetActiveWebContents()->GetMainFrame()));
   }

   content::WebContents* GetActiveWebContents() {
     return browser()->tab_strip_model()->GetActiveWebContents();
   }

   // This sends a simulated click at |point| and waits for test plugin to send
   // a status message indicating that it is essential. The test plugin sends a
   // status message during:
   //  - Plugin creation, to handle a plugin freshly created from a poster.
   //  - Peripheral status change.
   //  - In response to the explicit 'getPowerSaverStatus' request, in case the
   //    test has missed the above two events.
   void SimulateClickAndAwaitMarkedEssential(const char* element_id,
                                             const gfx::Point& point) {
     // Waits for the placeholder to be ready to be clicked first.
     std::string result = RunTestScript(
         "function handleEvent(event) {"
         "  if (event.data === 'placeholderLoaded') {"
         "    window.domAutomationController.send('ready');"
         "    plugin.removeEventListener('message', handleEvent);"
         "  }"
         "}"
         "plugin.addEventListener('message', handleEvent);"
         "if (plugin.hasAttribute('placeholderLoaded')) {"
         "  window.domAutomationController.send('ready');"
         "  plugin.removeEventListener('message', handleEvent);"
         "}",
         GetActiveWebContents(), element_id);
     ASSERT_EQ("ready", result);

     content::SimulateMouseClickAt(GetActiveWebContents(), 0 /* modifiers */,
                                   blink::WebMouseEvent::ButtonLeft, point);

     VerifyPluginMarkedEssential(GetActiveWebContents(), element_id);
   }
 };

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, SmallSameOrigin) {
   LoadHTML(
       "<object id='plugin' data='fake.swf' "
       "    type='application/x-ppapi-tests' width='400' height='100'>"
       "</object>");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin");
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, SmallCrossOrigin) {
   LoadHTML(
       "<object id='plugin' data='http://otherorigin.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='400' height='100'>"
       "</object>");
   VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");

   SimulateClickAndAwaitMarkedEssential("plugin", gfx::Point(50, 50));
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargeCrossOrigin) {
   LoadHTML(
       "<object id='large' data='http://otherorigin.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='400' height='500'>"
       "</object>"
       "<object id='medium_16_9' data='http://otherorigin.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='480' height='270'>"
       "</object>");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "large");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "medium_16_9");
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest,
                        LargePluginsPeripheralWhenPosterSpecified) {
   LoadHTML(
       "<object id='plugin_src' type='application/x-ppapi-tests' "
       "    width='400' height='500' poster='snapshot1x.png'></object>"
       "<object id='plugin_srcset' type='application/x-ppapi-tests' "
       "    width='400' height='500' "
       "    poster='snapshot1x.png 1x, snapshot2x.png 2x'></object>"
       "<object id='plugin_legacy_syntax' type='application/x-ppapi-tests' "
       "    width='400' height='500'>"
       "  <param name='poster' value='snapshot1x.png 1x, snapshot2x.png 2x'>"
       "</object>"
       "<embed id='plugin_embed_src' type='application/x-ppapi-tests' "
       "    width='400' height='500' poster='snapshot1x.png'></embed>"
       "<embed id='plugin_embed_srcset' type='application/x-ppapi-tests' "
       "    width='400' height='500'"
       "    poster='snapshot1x.png 1x, snapshot2x.png 2x'></embed>");

   EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_src"));
   EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_srcset"));
   EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_legacy_syntax"));
   EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_embed_src"));
   EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_embed_srcset"));
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest,
                        PluginMarkedEssentialAfterPosterClicked) {
   LoadHTML(
       "<object id='plugin' type='application/x-ppapi-tests' "
       "    width='400' height='100' poster='snapshot1x.png'></object>");
   EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin"));

   SimulateClickAndAwaitMarkedEssential("plugin", gfx::Point(50, 50));
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, OriginWhitelisting) {
   LoadHTML(
       "<object id='plugin1' data='http://otherorigin.com/fake1.swf' "
       "    type='application/x-ppapi-tests' width='400' height='100'></object>"
       "<object id='plugin2' data='http://otherorigin.com/fake2.swf' "
       "    type='application/x-ppapi-tests' width='400' height='500'>"
       "</object>");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin1");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin2");
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargeCrossOriginObscured) {
   LoadHTML(
       "<div id='container' "
       "    style='width: 400px; height: 100px; overflow: hidden;'>"
       "  <object id='plugin' data='http://otherorigin.com/fake.swf' "
       "      type='application/x-ppapi-tests' width='400' height='500'>"
       "  </object>"
       "</div>");
   VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");

   // Test that's unthrottled if it is unobscured.
   std::string script =
       "var container = window.document.getElementById('container');"
       "container.setAttribute('style', 'width: 400px; height: 400px;');";
   ASSERT_TRUE(content::ExecuteScript(GetActiveWebContents(), script));
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin");
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, ExpandingSmallPlugin) {
   LoadHTML(
       "<object id='plugin' data='http://otherorigin.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='400' height='80'></object>");
   VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");

   std::string script = "window.document.getElementById('plugin').height = 400;";
   ASSERT_TRUE(content::ExecuteScript(GetActiveWebContents(), script));
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin");
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, BackgroundTabPlugins) {
   std::string url_str =
       "data:text/html;charset=utf-8,"
       "<object id='same_origin' type='application/x-ppapi-tests'></object>"
       "<object id='small_cross_origin' data='http://otherorigin.com/fake1.swf' "
       "   type='application/x-ppapi-tests' width='400' height='100'></object>";
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), GURL(url_str), NEW_BACKGROUND_TAB,
       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);

   ASSERT_EQ(2, browser()->tab_strip_model()->count());
   content::WebContents* background_contents =
       browser()->tab_strip_model()->GetWebContentsAt(1);
   EXPECT_TRUE(
       content::WaitForRenderFrameReady(background_contents->GetMainFrame()));

   EXPECT_FALSE(PluginLoaded(background_contents, "same_origin"));
   EXPECT_FALSE(PluginLoaded(background_contents, "small_cross_origin"));

   browser()->tab_strip_model()->SelectNextTab();
   EXPECT_EQ(background_contents, GetActiveWebContents());

   VerifyPluginMarkedEssential(background_contents, "same_origin");
   VerifyPluginIsThrottled(background_contents, "small_cross_origin");
 }

 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, ZoomIndependent) {
   ui_zoom::ZoomController::FromWebContents(GetActiveWebContents())
       ->SetZoomLevel(4.0);
   LoadHTML(
       "<object id='plugin' data='http://otherorigin.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='400' height='200'>"
       "</object>");
   VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");
 }
	// Copyright 2015 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#include "base/command_line.h"
	#include "base/strings/string_piece.h"
	#include "base/strings/stringprintf.h"
	#include "chrome/browser/ui/browser.h"
	#include "chrome/browser/ui/tabs/tab_strip_model.h"
	#include "chrome/common/chrome_switches.h"
	#include "chrome/test/base/in_process_browser_test.h"
	#include "chrome/test/base/ui_test_utils.h"
	#include "components/ui/zoom/zoom_controller.h"
	#include "content/public/common/content_switches.h"
	#include "content/public/test/browser_test_utils.h"
	#include "content/public/test/ppapi_test_utils.h"
	#include "ppapi/shared_impl/ppapi_switches.h"
	#include "third_party/WebKit/public/web/WebInputEvent.h"
	#include "ui/base/window_open_disposition.h"
	#include "ui/gfx/geometry/point.h"

	namespace {

	std::string RunTestScript(base::StringPiece test_script,
	content::WebContents* contents,
	const std::string& element_id) {
	std::string script = base::StringPrintf(
	"var plugin = window.document.getElementById('%s');"
	"if (plugin === undefined \|\|"
	" (plugin.nodeName !== 'OBJECT' && plugin.nodeName !== 'EMBED')) {"
	" window.domAutomationController.send('error');"
	"} else {"
	" %s"
	"}",
	element_id.c_str(), test_script.data());
	std::string result;
	EXPECT_TRUE(
	content::ExecuteScriptAndExtractString(contents, script, &result));
	return result;
	}

	// This also tests that we have JavaScript access to the underlying plugin.
	bool PluginLoaded(content::WebContents* contents, const char* element_id) {
	std::string result = RunTestScript(
	"if (plugin.postMessage === undefined) {"
	" window.domAutomationController.send('poster_only');"
	"} else {"
	" window.domAutomationController.send('plugin_loaded');"
	"}",
	contents, element_id);
	EXPECT_NE("error", result);
	return result == "plugin_loaded";
	}

	// Also waits for the placeholder UI overlay to finish loading.
	void VerifyPluginIsThrottled(content::WebContents* contents,
	const char* element_id) {
	std::string result = RunTestScript(
	"function handleEvent(event) {"
	" if (event.data.isPeripheral && event.data.isThrottled && "
	" event.data.isHiddenForPlaceholder) {"
	" window.domAutomationController.send('throttled');"
	" plugin.removeEventListener('message', handleEvent);"
	" }"
	"}"
	"plugin.addEventListener('message', handleEvent);"
	"if (plugin.postMessage !== undefined) {"
	" plugin.postMessage('getPowerSaverStatus');"
	"}",
	contents, element_id);
	EXPECT_EQ("throttled", result);

	// Page should continue to have JavaScript access to all throttled plugins.
	EXPECT_TRUE(PluginLoaded(contents, element_id));
	}

	void VerifyPluginMarkedEssential(content::WebContents* contents,
	const char* element_id) {
	std::string result = RunTestScript(
	"function handleEvent(event) {"
	" if (event.data.isPeripheral === false) {"
	" window.domAutomationController.send('essential');"
	" plugin.removeEventListener('message', handleEvent);"
	" }"
	"}"
	"plugin.addEventListener('message', handleEvent);"
	"if (plugin.postMessage !== undefined) {"
	" plugin.postMessage('getPowerSaverStatus');"
	"}",
	contents, element_id);
	EXPECT_EQ("essential", result);
	EXPECT_TRUE(PluginLoaded(contents, element_id));
	}

	} // namespace

	class PluginPowerSaverBrowserTest : public InProcessBrowserTest {
	public:
	void SetUpCommandLine(base::CommandLine* command_line) override {
	command_line->AppendSwitch(switches::kEnablePluginPowerSaver);
	command_line->AppendSwitch(switches::kEnablePepperTesting);
	command_line->AppendSwitch(switches::kEnablePluginPlaceholderTesting);
	command_line->AppendSwitchASCII(
	switches::kOverridePluginPowerSaverForTesting, "ignore-list");

	ASSERT_TRUE(ppapi::RegisterPowerSaverTestPlugin(command_line));
	}

	protected:
	void LoadHTML(const char* html) {
	std::string url_str = "data:text/html;charset=utf-8,";
	url_str.append(html);
	ui_test_utils::NavigateToURL(browser(), GURL(url_str));
	EXPECT_TRUE(content::WaitForRenderFrameReady(
	GetActiveWebContents()->GetMainFrame()));
	}

	content::WebContents* GetActiveWebContents() {
	return browser()->tab_strip_model()->GetActiveWebContents();
	}

	// This sends a simulated click at \|point\| and waits for test plugin to send
	// a status message indicating that it is essential. The test plugin sends a
	// status message during:
	// - Plugin creation, to handle a plugin freshly created from a poster.
	// - Peripheral status change.
	// - In response to the explicit 'getPowerSaverStatus' request, in case the
	// test has missed the above two events.
	void SimulateClickAndAwaitMarkedEssential(const char* element_id,
	const gfx::Point& point) {
	// Waits for the placeholder to be ready to be clicked first.
	std::string result = RunTestScript(
	"function handleEvent(event) {"
	" if (event.data === 'placeholderLoaded') {"
	" window.domAutomationController.send('ready');"
	" plugin.removeEventListener('message', handleEvent);"
	" }"
	"}"
	"plugin.addEventListener('message', handleEvent);"
	"if (plugin.hasAttribute('placeholderLoaded')) {"
	" window.domAutomationController.send('ready');"
	" plugin.removeEventListener('message', handleEvent);"
	"}",
	GetActiveWebContents(), element_id);
	ASSERT_EQ("ready", result);

	content::SimulateMouseClickAt(GetActiveWebContents(), 0 /* modifiers */,
	blink::WebMouseEvent::ButtonLeft, point);

	VerifyPluginMarkedEssential(GetActiveWebContents(), element_id);
	}
	};

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, SmallSameOrigin) {
	LoadHTML(
	"<object id='plugin' data='fake.swf' "
	" type='application/x-ppapi-tests' width='400' height='100'>"
	"</object>");
	VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin");
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, SmallCrossOrigin) {
	LoadHTML(
	"<object id='plugin' data='http://otherorigin.com/fake.swf' "
	" type='application/x-ppapi-tests' width='400' height='100'>"
	"</object>");
	VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");

	SimulateClickAndAwaitMarkedEssential("plugin", gfx::Point(50, 50));
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargeCrossOrigin) {
	LoadHTML(
	"<object id='large' data='http://otherorigin.com/fake.swf' "
	" type='application/x-ppapi-tests' width='400' height='500'>"
	"</object>"
	"<object id='medium_16_9' data='http://otherorigin.com/fake.swf' "
	" type='application/x-ppapi-tests' width='480' height='270'>"
	"</object>");
	VerifyPluginMarkedEssential(GetActiveWebContents(), "large");
	VerifyPluginMarkedEssential(GetActiveWebContents(), "medium_16_9");
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest,
	LargePluginsPeripheralWhenPosterSpecified) {
	LoadHTML(
	"<object id='plugin_src' type='application/x-ppapi-tests' "
	" width='400' height='500' poster='snapshot1x.png'></object>"
	"<object id='plugin_srcset' type='application/x-ppapi-tests' "
	" width='400' height='500' "
	" poster='snapshot1x.png 1x, snapshot2x.png 2x'></object>"
	"<object id='plugin_legacy_syntax' type='application/x-ppapi-tests' "
	" width='400' height='500'>"
	" <param name='poster' value='snapshot1x.png 1x, snapshot2x.png 2x'>"
	"</object>"
	"<embed id='plugin_embed_src' type='application/x-ppapi-tests' "
	" width='400' height='500' poster='snapshot1x.png'></embed>"
	"<embed id='plugin_embed_srcset' type='application/x-ppapi-tests' "
	" width='400' height='500'"
	" poster='snapshot1x.png 1x, snapshot2x.png 2x'></embed>");

	EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_src"));
	EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_srcset"));
	EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_legacy_syntax"));
	EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_embed_src"));
	EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin_embed_srcset"));
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest,
	PluginMarkedEssentialAfterPosterClicked) {
	LoadHTML(
	"<object id='plugin' type='application/x-ppapi-tests' "
	" width='400' height='100' poster='snapshot1x.png'></object>");
	EXPECT_FALSE(PluginLoaded(GetActiveWebContents(), "plugin"));

	SimulateClickAndAwaitMarkedEssential("plugin", gfx::Point(50, 50));
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, OriginWhitelisting) {
	LoadHTML(
	"<object id='plugin1' data='http://otherorigin.com/fake1.swf' "
	" type='application/x-ppapi-tests' width='400' height='100'></object>"
	"<object id='plugin2' data='http://otherorigin.com/fake2.swf' "
	" type='application/x-ppapi-tests' width='400' height='500'>"
	"</object>");
	VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin1");
	VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin2");
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargeCrossOriginObscured) {
	LoadHTML(
	"<div id='container' "
	" style='width: 400px; height: 100px; overflow: hidden;'>"
	" <object id='plugin' data='http://otherorigin.com/fake.swf' "
	" type='application/x-ppapi-tests' width='400' height='500'>"
	" </object>"
	"</div>");
	VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");

	// Test that's unthrottled if it is unobscured.
	std::string script =
	"var container = window.document.getElementById('container');"
	"container.setAttribute('style', 'width: 400px; height: 400px;');";
	ASSERT_TRUE(content::ExecuteScript(GetActiveWebContents(), script));
	VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin");
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, ExpandingSmallPlugin) {
	LoadHTML(
	"<object id='plugin' data='http://otherorigin.com/fake.swf' "
	" type='application/x-ppapi-tests' width='400' height='80'></object>");
	VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");

	std::string script = "window.document.getElementById('plugin').height = 400;";
	ASSERT_TRUE(content::ExecuteScript(GetActiveWebContents(), script));
	VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin");
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, BackgroundTabPlugins) {
	std::string url_str =
	"data:text/html;charset=utf-8,"
	"<object id='same_origin' type='application/x-ppapi-tests'></object>"
	"<object id='small_cross_origin' data='http://otherorigin.com/fake1.swf' "
	" type='application/x-ppapi-tests' width='400' height='100'></object>";
	ui_test_utils::NavigateToURLWithDisposition(
	browser(), GURL(url_str), NEW_BACKGROUND_TAB,
	ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);

	ASSERT_EQ(2, browser()->tab_strip_model()->count());
	content::WebContents* background_contents =
	browser()->tab_strip_model()->GetWebContentsAt(1);
	EXPECT_TRUE(
	content::WaitForRenderFrameReady(background_contents->GetMainFrame()));

	EXPECT_FALSE(PluginLoaded(background_contents, "same_origin"));
	EXPECT_FALSE(PluginLoaded(background_contents, "small_cross_origin"));

	browser()->tab_strip_model()->SelectNextTab();
	EXPECT_EQ(background_contents, GetActiveWebContents());

	VerifyPluginMarkedEssential(background_contents, "same_origin");
	VerifyPluginIsThrottled(background_contents, "small_cross_origin");
	}

	IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, ZoomIndependent) {
	ui_zoom::ZoomController::FromWebContents(GetActiveWebContents())
	->SetZoomLevel(4.0);
	LoadHTML(
	"<object id='plugin' data='http://otherorigin.com/fake.swf' "
	" type='application/x-ppapi-tests' width='400' height='200'>"
	"</object>");
	VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");
	}