Fix possible bad cast in Tab

chrome/browser/ui/views/tabs/tab.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_TABS_TAB_H_
 #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_H_
 
 #include <list>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/views/tabs/tab_renderer_data.h"
 #include "ui/base/layout.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/point.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/glow_hover_controller.h"
 #include "ui/views/view.h"
 
 class TabController;
 
 namespace gfx {
 class Animation;
 class AnimationContainer;
 class LinearAnimation;
 class MultiAnimation;
+class ThrobAnimation;
 }
 namespace views {
 class ImageButton;
 class Label;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 //
 //  A View that renders a Tab in a TabStrip.
 //
@@ skipping 170 matching lines @@
   void DataChanged(const TabRendererData& old);
 
   // Paint with the normal tab style.
   void PaintTab(gfx::Canvas* canvas);
 
   // Paint with the "immersive mode" light-bar style.
   void PaintImmersiveTab(gfx::Canvas* canvas);
 
   // Paint various portions of the Tab
   void PaintTabBackground(gfx::Canvas* canvas);
-  void PaintInactiveTabBackgroundWithTitleChange(
-      gfx::Canvas* canvas,
-      gfx::MultiAnimation* animation);
+  void PaintInactiveTabBackgroundWithTitleChange(gfx::Canvas* canvas);
   void PaintInactiveTabBackground(gfx::Canvas* canvas);
   void PaintInactiveTabBackgroundUsingResourceId(gfx::Canvas* canvas,
                                                  int tab_id);
   void PaintActiveTabBackground(gfx::Canvas* canvas);
 
   // Paints the favicon and media indicator icon, mirrored for RTL if needed.
   void PaintIcon(gfx::Canvas* canvas);
   void PaintMediaIndicator(gfx::Canvas* canvas);
 
   // Invoked if data_.network_state changes, or the network_state is not none.
@@ skipping 88 matching lines @@
   // The current index of the loading animation. The range varies depending on
   // whether the tab is loading or waiting, see AdvanceLoadingAnimation().
   int loading_animation_frame_;
 
   // Step in the immersive loading progress indicator.
   int immersive_loading_step_;
 
   bool should_display_crashed_favicon_;
 
   // Whole-tab throbbing "pulse" animation.
-  scoped_ptr<gfx::Animation> tab_animation_;
+  scoped_ptr<gfx::ThrobAnimation> pulse_animation_;
+
+  scoped_ptr<gfx::MultiAnimation> mini_title_change_animation_;
 
   // Crash icon animation (in place of favicon).
   scoped_ptr<gfx::LinearAnimation> crash_icon_animation_;
 
   // Media indicator fade-in/out animation (i.e., only on show/hide, not a
   // continuous animation).
   scoped_ptr<gfx::Animation> media_indicator_animation_;
   TabMediaState animating_media_state_;
 
   scoped_refptr<gfx::AnimationContainer> animation_container_;
@@ skipping 39 matching lines @@
   SkColor close_button_color_;
 
   // As the majority of the tabs are inactive, and painting tabs is slowish,
   // we cache a handful of the inactive tab backgrounds here.
   static ImageCache* image_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(Tab);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_TAB_H_