Android: Disable about:flags impl-side-painting override

chrome/browser/chrome_browser_main.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/chrome_browser_main.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 845 matching lines @@
   master_prefs_.reset(new first_run::MasterPrefs);
   // Android doesn't use StartupBrowserCreator.
   browser_creator_.reset(new StartupBrowserCreator);
   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
   chrome::UMABrowsingActivityObserver::Init();
 #endif
 
 #if !defined(OS_CHROMEOS)
   // Convert active labs into switches. This needs to be done before
   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
-  // affected by experiment flags (--touch-optimized-ui in particular). Not
-  // needed on Android as there aren't experimental flags.
+  // affected by experiment flags (--touch-optimized-ui in particular).
   // On ChromeOS system level flags are applied from the device settings from
   // the session manager.
   {
     TRACE_EVENT0("startup",
         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
     about_flags::PrefServiceFlagsStorage flags_storage_(
         g_browser_process->local_state());
     about_flags::ConvertFlagsToSwitches(&flags_storage_,
                                         CommandLine::ForCurrentProcess(),
                                         about_flags::kAddSentinels);
@@ skipping 842 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif
 #endif
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }