Replace s/NULL/nullptr/ in field initializers used in constructors.

This change has been generated by a clang tool developed for the
go/miracleptr project.

Bug: 1080832
Change-Id: Ie7f428c8ad300db1df95d873668163d0ac719a22
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2231843
Reviewed-by: Kentaro Hara <[email protected]>
Reviewed-by: Bartek Nowierski <[email protected]>
Commit-Queue: Ɓukasz Anforowicz <[email protected]>
Cr-Commit-Position: refs/heads/master@{#776343}
diff --git a/chrome/browser/extensions/api/bookmarks/bookmark_api_helpers_unittest.cc b/chrome/browser/extensions/api/bookmarks/bookmark_api_helpers_unittest.cc
index 5f90d3df..8671eb1 100644
--- a/chrome/browser/extensions/api/bookmarks/bookmark_api_helpers_unittest.cc
+++ b/chrome/browser/extensions/api/bookmarks/bookmark_api_helpers_unittest.cc
@@ -35,11 +35,11 @@
 class ExtensionBookmarksTest : public testing::Test {
  public:
   ExtensionBookmarksTest()
-      : managed_(NULL),
-        model_(NULL),
-        node_(NULL),
-        node2_(NULL),
-        folder_(NULL) {}
+      : managed_(nullptr),
+        model_(nullptr),
+        node_(nullptr),
+        node2_(nullptr),
+        folder_(nullptr) {}
 
   void SetUp() override {
     profile_.CreateBookmarkModel(false);
diff --git a/chrome/browser/extensions/api/braille_display_private/mock_braille_controller.cc b/chrome/browser/extensions/api/braille_display_private/mock_braille_controller.cc
index 0e07e7a..45681c2 100644
--- a/chrome/browser/extensions/api/braille_display_private/mock_braille_controller.cc
+++ b/chrome/browser/extensions/api/braille_display_private/mock_braille_controller.cc
@@ -9,7 +9,7 @@
 namespace braille_display_private {
 
 MockBrailleController::MockBrailleController()
-    : available_(false), observer_(NULL) {}
+    : available_(false), observer_(nullptr) {}
 
 std::unique_ptr<DisplayState> MockBrailleController::GetDisplayState() {
   std::unique_ptr<DisplayState> state(new DisplayState());
diff --git a/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc b/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
index eedd272..54d4ece 100644
--- a/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
+++ b/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
@@ -45,7 +45,7 @@
 
 class ExtensionContentSettingsApiTest : public ExtensionApiTest {
  public:
-  ExtensionContentSettingsApiTest() : profile_(NULL) {}
+  ExtensionContentSettingsApiTest() : profile_(nullptr) {}
 
   void SetUpOnMainThread() override {
     ExtensionApiTest::SetUpOnMainThread();
diff --git a/chrome/browser/extensions/api/debugger/debugger_api.cc b/chrome/browser/extensions/api/debugger/debugger_api.cc
index 253ce75..3aaf286 100644
--- a/chrome/browser/extensions/api/debugger/debugger_api.cc
+++ b/chrome/browser/extensions/api/debugger/debugger_api.cc
@@ -389,9 +389,7 @@
 
 // DebuggerFunction -----------------------------------------------------------
 
-DebuggerFunction::DebuggerFunction()
-    : client_host_(NULL) {
-}
+DebuggerFunction::DebuggerFunction() : client_host_(nullptr) {}
 
 DebuggerFunction::~DebuggerFunction() = default;
 
diff --git a/chrome/browser/extensions/api/declarative_content/request_content_script_apitest.cc b/chrome/browser/extensions/api/declarative_content/request_content_script_apitest.cc
index 65865c4..4a99b45 100644
--- a/chrome/browser/extensions/api/declarative_content/request_content_script_apitest.cc
+++ b/chrome/browser/extensions/api/declarative_content/request_content_script_apitest.cc
@@ -113,7 +113,7 @@
 };
 
 RequestContentScriptAPITest::RequestContentScriptAPITest()
-    : extension_(NULL) {}
+    : extension_(nullptr) {}
 
 testing::AssertionResult RequestContentScriptAPITest::RunTest(
     PermissionOrMatcherType manifest_permission,
diff --git a/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc b/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
index 51af96f6..1400449 100644
--- a/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
+++ b/chrome/browser/extensions/api/downloads/downloads_api_browsertest.cc
@@ -320,10 +320,9 @@
 class DownloadExtensionTest : public ExtensionApiTest {
  public:
   DownloadExtensionTest()
-    : extension_(NULL),
-      incognito_browser_(NULL),
-      current_browser_(NULL) {
-  }
+      : extension_(nullptr),
+        incognito_browser_(nullptr),
+        current_browser_(nullptr) {}
 
  protected:
   // Used with CreateHistoryDownloads
diff --git a/chrome/browser/extensions/api/extension_action/extension_action_api.cc b/chrome/browser/extensions/api/extension_action/extension_action_api.cc
index b2fa34c..6844e48c 100644
--- a/chrome/browser/extensions/api/extension_action/extension_action_api.cc
+++ b/chrome/browser/extensions/api/extension_action/extension_action_api.cc
@@ -240,11 +240,10 @@
 //
 
 ExtensionActionFunction::ExtensionActionFunction()
-    : details_(NULL),
+    : details_(nullptr),
       tab_id_(ExtensionAction::kDefaultTabId),
-      contents_(NULL),
-      extension_action_(NULL) {
-}
+      contents_(nullptr),
+      extension_action_(nullptr) {}
 
 ExtensionActionFunction::~ExtensionActionFunction() {
 }
diff --git a/chrome/browser/extensions/api/gcm/gcm_apitest.cc b/chrome/browser/extensions/api/gcm/gcm_apitest.cc
index d9b189cf..623b7a0 100644
--- a/chrome/browser/extensions/api/gcm/gcm_apitest.cc
+++ b/chrome/browser/extensions/api/gcm/gcm_apitest.cc
@@ -60,7 +60,7 @@
 
 class GcmApiTest : public ExtensionApiTest {
  public:
-  GcmApiTest() : fake_gcm_profile_service_(NULL) {}
+  GcmApiTest() : fake_gcm_profile_service_(nullptr) {}
 
  protected:
   void SetUpCommandLine(base::CommandLine* command_line) override;
diff --git a/chrome/browser/extensions/api/messaging/native_message_process_host.cc b/chrome/browser/extensions/api/messaging/native_message_process_host.cc
index 6dba3532..d1d51bfa 100644
--- a/chrome/browser/extensions/api/messaging/native_message_process_host.cc
+++ b/chrome/browser/extensions/api/messaging/native_message_process_host.cc
@@ -59,7 +59,7 @@
     const std::string& source_extension_id,
     const std::string& native_host_name,
     std::unique_ptr<NativeProcessLauncher> launcher)
-    : client_(NULL),
+    : client_(nullptr),
       source_extension_id_(source_extension_id),
       native_host_name_(native_host_name),
       launcher_(std::move(launcher)),
diff --git a/chrome/browser/extensions/api/preference/preference_apitest.cc b/chrome/browser/extensions/api/preference/preference_apitest.cc
index 3dfd9b01..f37fe57 100644
--- a/chrome/browser/extensions/api/preference/preference_apitest.cc
+++ b/chrome/browser/extensions/api/preference/preference_apitest.cc
@@ -42,7 +42,7 @@
 
 class ExtensionPreferenceApiTest : public extensions::ExtensionApiTest {
  protected:
-  ExtensionPreferenceApiTest() : profile_(NULL) {}
+  ExtensionPreferenceApiTest() : profile_(nullptr) {}
 
   void CheckPreferencesSet() {
     PrefService* prefs = profile_->GetPrefs();
diff --git a/chrome/browser/extensions/api/tabs/tabs_api.cc b/chrome/browser/extensions/api/tabs/tabs_api.cc
index bc44d214..a6411045 100644
--- a/chrome/browser/extensions/api/tabs/tabs_api.cc
+++ b/chrome/browser/extensions/api/tabs/tabs_api.cc
@@ -1211,8 +1211,7 @@
   return true;
 }
 
-TabsUpdateFunction::TabsUpdateFunction() : web_contents_(NULL) {
-}
+TabsUpdateFunction::TabsUpdateFunction() : web_contents_(nullptr) {}
 
 ExtensionFunction::ResponseAction TabsUpdateFunction::Run() {
   std::unique_ptr<tabs::Update::Params> params(