Revert 152080 - Refactor browser window zoom handling and enable zoom icon on all platforms.

chrome/browser/ui/panels/panel_browser_window.h

Index: chrome/browser/ui/panels/panel_browser_window.h
===================================================================
--- chrome/browser/ui/panels/panel_browser_window.h	(revision 152086)
+++ chrome/browser/ui/panels/panel_browser_window.h	(working copy)
@@ -59,7 +59,9 @@
   virtual void SetDevToolsDockSide(DevToolsDockSide side) OVERRIDE;
   virtual void UpdateLoadingAnimations(bool should_animate) OVERRIDE;
   virtual void SetStarredState(bool is_starred) OVERRIDE;
-  virtual void ZoomChangedForActiveTab(bool can_show_bubble) OVERRIDE;
+  virtual void SetZoomIconState(ZoomController::ZoomIconState state) OVERRIDE;
+  virtual void SetZoomIconTooltipPercent(int zoom_percent) OVERRIDE;
+  virtual void ShowZoomBubble(int zoom_percent) OVERRIDE;
   virtual void EnterFullscreen(
       const GURL& url, FullscreenExitBubbleType type) OVERRIDE;
   virtual void ExitFullscreen() OVERRIDE;