Move kStandardSchemeSeparator from //content to //url

This constant is used in code shared by iOS, and is general enough to be placed
in //url.

TBR=benm,yoz

Review URL: https://codereview.chromium.org/319613002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@275055 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/extensions/window_open_apitest.cc b/chrome/browser/extensions/window_open_apitest.cc
index 5017d16..db6f3fd 100644
--- a/chrome/browser/extensions/window_open_apitest.cc
+++ b/chrome/browser/extensions/window_open_apitest.cc
@@ -454,7 +454,7 @@
       test_data_dir_.AppendASCII("uitest").AppendASCII("window_open")));
 
   GURL start_url(std::string(extensions::kExtensionScheme) +
-                     content::kStandardSchemeSeparator +
+                     url::kStandardSchemeSeparator +
                      last_loaded_extension_id() + "/test.html");
   ui_test_utils::NavigateToURL(browser(), start_url);
   WebContents* newtab = NULL;
@@ -475,7 +475,7 @@
       test_data_dir_.AppendASCII("uitest").AppendASCII("window_open")));
 
   GURL start_url(std::string(extensions::kExtensionScheme) +
-                     content::kStandardSchemeSeparator +
+                     url::kStandardSchemeSeparator +
                      last_loaded_extension_id() + "/test.html");
   ui_test_utils::NavigateToURL(browser(), start_url);
   ASSERT_NO_FATAL_FAILURE(
@@ -499,7 +499,7 @@
   ASSERT_NO_FATAL_FAILURE(
       OpenWindow(browser()->tab_strip_model()->GetActiveWebContents(),
                  GURL(std::string(extensions::kExtensionScheme) +
-                     content::kStandardSchemeSeparator +
+                     url::kStandardSchemeSeparator +
                      last_loaded_extension_id() + "/newtab.html"),
                  false,
                  &newtab));