Add reset all button to flags page

chrome/browser/ui/webui/flags_ui.cc

 // Copyright (c) 2012 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 "chrome/browser/ui/webui/flags_ui.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 36 matching lines @@
   source->SetUseJsonJSFormatV2();
   source->AddLocalizedString("flagsLongTitle", IDS_FLAGS_LONG_TITLE);
   source->AddLocalizedString("flagsTableTitle", IDS_FLAGS_TABLE_TITLE);
   source->AddLocalizedString("flagsNoExperimentsAvailable",
                              IDS_FLAGS_NO_EXPERIMENTS_AVAILABLE);
   source->AddLocalizedString("flagsWarningHeader", IDS_FLAGS_WARNING_HEADER);
   source->AddLocalizedString("flagsBlurb", IDS_FLAGS_WARNING_TEXT);
   source->AddLocalizedString("flagsNotSupported", IDS_FLAGS_NOT_AVAILABLE);
   source->AddLocalizedString("flagsRestartNotice", IDS_FLAGS_RELAUNCH_NOTICE);
   source->AddLocalizedString("flagsRestartButton", IDS_FLAGS_RELAUNCH_BUTTON);
+  source->AddLocalizedString("resetAllButton", IDS_FLAGS_RESET_ALL_BUTTON);
   source->AddLocalizedString("disable", IDS_FLAGS_DISABLE);
   source->AddLocalizedString("enable", IDS_FLAGS_ENABLE);
 #if defined(OS_CHROMEOS)
   // Set the strings to show which user can actually change the flags
   source->AddLocalizedString("ownerOnly", IDS_OPTIONS_ACCOUNTS_OWNER_ONLY);
   std::string owner;
   chromeos::CrosSettings::Get()->GetString(chromeos::kDeviceOwner, &owner);
   source->AddString("ownerUserId", UTF8ToUTF16(owner));
 #endif
 
@@ skipping 27 matching lines @@
 
   // Callback for the "requestFlagsExperiments" message.
   void HandleRequestFlagsExperiments(const ListValue* args);
 
   // Callback for the "enableFlagsExperiment" message.
   void HandleEnableFlagsExperimentMessage(const ListValue* args);
 
   // Callback for the "restartBrowser" message. Restores all tabs on restart.
   void HandleRestartBrowser(const ListValue* args);
 
+  // Callback for the "resetAllFlags" message.
+  void HandleResetAllFlags(const ListValue* args);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(FlagsDOMHandler);
 };
 
 void FlagsDOMHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback("requestFlagsExperiments",
       base::Bind(&FlagsDOMHandler::HandleRequestFlagsExperiments,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("enableFlagsExperiment",
       base::Bind(&FlagsDOMHandler::HandleEnableFlagsExperimentMessage,
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("restartBrowser",
       base::Bind(&FlagsDOMHandler::HandleRestartBrowser,
                  base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("resetAllFlags",
+      base::Bind(&FlagsDOMHandler::HandleResetAllFlags,
+                 base::Unretained(this)));
 }
 
 void FlagsDOMHandler::HandleRequestFlagsExperiments(const ListValue* args) {
   DictionaryValue results;
   results.Set("flagsExperiments",
               about_flags::GetFlagsExperimentsData(
                   g_browser_process->local_state()));
   results.SetBoolean("needsRestart",
                      about_flags::IsRestartNeededToCommitChanges());
   web_ui()->CallJavascriptFunction("returnFlagsExperiments", results);
@@ skipping 14 matching lines @@
   about_flags::SetExperimentEnabled(
       g_browser_process->local_state(),
       experiment_internal_name,
       enable_str == "true");
 }
 
 void FlagsDOMHandler::HandleRestartBrowser(const ListValue* args) {
   browser::AttemptRestart();
 }
 
+void FlagsDOMHandler::HandleResetAllFlags(const ListValue* args) {
+  about_flags::ResetAllFlags(g_browser_process->local_state());
+}
+
 }  // namespace
 
 ///////////////////////////////////////////////////////////////////////////////
 //
 // FlagsUI
 //
 ///////////////////////////////////////////////////////////////////////////////
 
 FlagsUI::FlagsUI(content::WebUI* web_ui) : WebUIController(web_ui) {
   web_ui->AddMessageHandler(new FlagsDOMHandler());
 
   // Set up the about:flags source.
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, CreateFlagsUIHTMLSource());
 }
 
 // static
 base::RefCountedMemory* FlagsUI::GetFaviconResourceBytes(
       ui::ScaleFactor scale_factor) {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytesForScale(IDR_FLAGS_FAVICON, scale_factor);
 }
 
 // static
 void FlagsUI::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterListPref(prefs::kEnabledLabsExperiments);
 }