Refactor browser window zoom handling and enable zoom icon on all platforms.

chrome/browser/ui/views/frame/browser_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_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 230 matching lines @@
   virtual gfx::NativeWindow GetNativeWindow() OVERRIDE;
   virtual BrowserWindowTesting* GetBrowserWindowTesting() OVERRIDE;
   virtual StatusBubble* GetStatusBubble() OVERRIDE;
   virtual void UpdateTitleBar() OVERRIDE;
   virtual void BookmarkBarStateChanged(
       BookmarkBar::AnimateChangeType change_type) OVERRIDE;
   virtual void UpdateDevTools() OVERRIDE;
   virtual void SetDevToolsDockSide(DevToolsDockSide side) OVERRIDE;
   virtual void UpdateLoadingAnimations(bool should_animate) OVERRIDE;
   virtual void SetStarredState(bool is_starred) OVERRIDE;
-  virtual void SetZoomIconState(
-      ZoomController::ZoomIconState zoom_icon_state) OVERRIDE;
-  virtual void SetZoomIconTooltipPercent(int zoom_percent) OVERRIDE;
-  virtual void ShowZoomBubble(int zoom_percent) OVERRIDE;
+  virtual void ZoomChangedForActiveTab(bool can_show_bubble) OVERRIDE;
   virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual bool IsMaximized() const OVERRIDE;
   virtual bool IsMinimized() const OVERRIDE;
   virtual void Maximize() OVERRIDE;
   virtual void Minimize() OVERRIDE;
   virtual void Restore() OVERRIDE;
   virtual void EnterFullscreen(
       const GURL& url, FullscreenExitBubbleType bubble_type) OVERRIDE;
   virtual void ExitFullscreen() OVERRIDE;
@@ skipping 440 matching lines @@
   gfx::ScopedSysColorChangeListener color_change_listener_;
 
 #if defined(USE_AURA)
   scoped_ptr<SearchViewController> search_view_controller_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_