chrome: Cleanup class/struct forward declarations

chrome/browser/ui/views/location_bar/content_setting_image_view.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_UI_VIEWS_LOCATION_BAR_CONTENT_SETTING_IMAGE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CONTENT_SETTING_IMAGE_VIEW_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 12 matching lines @@
 namespace content {
 class WebContents;
 }
 
 namespace gfx {
 class FontList;
 }
 
 namespace views {
 class BubbleDialogDelegateView;
-class ImageView;
-class Label;
 }
 
 // The ContentSettingImageView displays an icon and optional text label for
 // various content settings affordances in the location bar (i.e. plugin
 // blocking, geolocation).
 class ContentSettingImageView : public IconLabelBubbleView,
                                 public gfx::AnimationDelegate,
                                 public views::WidgetObserver {
  public:
   // ContentSettingImageView takes ownership of its |image_model|.
@@ skipping 47 matching lines @@
 
   // This is used to check if the bubble was showing during the mouse pressed
   // event. If this is true then the mouse released event is ignored to prevent
   // the bubble from reshowing.
   bool suppress_mouse_released_action_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentSettingImageView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CONTENT_SETTING_IMAGE_VIEW_H_