Introduce AndroidFocusRules and NativeWidgetAndroid

chrome/browser/chrome_browser_main_android.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROME_BROWSER_MAIN_ANDROID_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_ANDROID_H_
 
 #include "chrome/browser/chrome_browser_main.h"
 
 namespace breakpad {
 class CrashDumpManager;
 }
 
+#if defined(USE_AURA)
+class WindowTreeHostManager;
+#endif
+
 class ChromeBrowserMainPartsAndroid : public ChromeBrowserMainParts {
  public:
   explicit ChromeBrowserMainPartsAndroid(
       const content::MainFunctionParams& parameters);
   ~ChromeBrowserMainPartsAndroid() override;
 
+#if defined(USE_AURA)
+  void InitAura();
+#endif
+
   // content::BrowserMainParts overrides.
   int PreCreateThreads() override;
+  void PreProfileInit() override;
   void PostProfileInit() override;
   void PreEarlyInitialization() override;
   void PreMainMessageLoopRun() override;
 
   // ChromeBrowserMainParts overrides.
   void PostBrowserStart() override;
   void ShowMissingLocaleMessageBox() override;
 
  private:
   scoped_ptr<base::MessageLoop> main_message_loop_;
   scoped_ptr<breakpad::CrashDumpManager> crash_dump_manager_;
+#if defined(USE_AURA)
+  scoped_ptr<WindowTreeHostManager> window_tree_host_manager_;
+#endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsAndroid);
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_ANDROID_H_