chrome: Cleanup class/struct forward declarations

chrome/browser/android/tab_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_ANDROID_TAB_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_TAB_ANDROID_H_
 
 #include <jni.h>
 #include <stdint.h>
 
@@ skipping 10 matching lines @@
 #include "chrome/browser/ui/tab_contents/core_tab_helper_delegate.h"
 #include "components/favicon/core/favicon_driver_observer.h"
 #include "components/infobars/core/infobar_manager.h"
 #include "components/sessions/core/session_id.h"
 #include "components/toolbar/toolbar_model.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class GURL;
 class Profile;
-class SkBitmap;
 
 namespace blimp {
 namespace client {
 class BlimpContents;
 }
 }
 
 namespace cc {
 class Layer;
 }
 
 namespace chrome {
 struct NavigateParams;
 }
 
 namespace android {
 class TabWebContentsDelegateAndroid;
 class TabContentManager;
 }
 
 namespace content {
 class WebContents;
 }
 
-namespace infobars {
-class InfoBar;
-}
-
 namespace prerender {
 class PrerenderManager;
 }
 
 class TabAndroid : public CoreTabHelperDelegate,
                    public InstantServiceObserver,
                    public SearchTabHelperDelegate,
                    public content::NotificationObserver,
                    public favicon::FaviconDriverObserver {
  public:
@@ skipping 214 matching lines @@
       web_contents_delegate_;
 
   std::unique_ptr<blimp::client::BlimpContents> blimp_contents_;
 
   std::unique_ptr<browser_sync::SyncedTabDelegateAndroid> synced_tab_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TabAndroid);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_TAB_ANDROID_H_