Add handling for immersive fullscreen to the zoom bubble

chrome/browser/ui/views/frame/immersive_mode_controller.h

 // Copyright 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_IMMERSIVE_MODE_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_H_
 
 #include "base/compiler_specific.h"
+#include "base/observer_list.h"
 
 class BookmarkBarView;
 class FullscreenController;
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
 namespace views {
@@ skipping 14 matching lines @@
 // screen. The tab strip is optionally painted with miniature "tab indicator"
 // rectangles.
 // Currently, immersive mode is only available for Chrome OS.
 class ImmersiveModeController {
  public:
   enum AnimateReveal {
     ANIMATE_REVEAL_YES,
     ANIMATE_REVEAL_NO
   };
 
+  class Observer {
+   public:
+    // Called when a reveal of the top-of-window views has been initiated.
+    virtual void OnImmersiveRevealStarted() {}
+
+    // Called when the immersive mode controller has been destroyed.
+    virtual void OnImmersiveModeControllerDestroyed() {}
+
+   protected:
+    virtual ~Observer() {}
+  };
+
   class Delegate {
    public:
     // Returns the bookmark bar, or NULL if the window does not support one.
     virtual BookmarkBarView* GetBookmarkBar() = 0;
 
     // Returns the browser's FullscreenController.
     virtual FullscreenController* GetFullscreenController() = 0;
 
     // Notifies the delegate that fullscreen has been entered or exited.
     virtual void FullscreenStateChanged() = 0;
 
     // Requests that the tab strip be painted in a short, "light bar" style.
     virtual void SetImmersiveStyle(bool immersive) = 0;
 
    protected:
     virtual ~Delegate() {}
   };
 
-  virtual ~ImmersiveModeController() {}
+  ImmersiveModeController();
+  virtual ~ImmersiveModeController();
 
   // Must initialize after browser view has a Widget and native window.
   virtual void Init(Delegate* delegate,
                     views::Widget* widget,
                     views::View* top_container) = 0;
 
   // Enables or disables immersive mode.
   virtual void SetEnabled(bool enabled) = 0;
   virtual bool IsEnabled() const = 0;
 
@@ skipping 48 matching lines @@
   virtual void UnanchorWidgetFromTopContainer(views::Widget* widget) = 0;
 
   // Called by the TopContainerView to indicate that its bounds have changed.
   virtual void OnTopContainerBoundsChanged() = 0;
 
   // Called by the find bar to indicate that its visible bounds have changed.
   // |new_visible_bounds_in_screen| should be empty if the find bar is not
   // visible.
   virtual void OnFindBarVisibleBoundsChanged(
       const gfx::Rect& new_visible_bounds_in_screen) = 0;
+
+  virtual void AddObserver(Observer* observer);
+  virtual void RemoveObserver(Observer* observer);
+
+ protected:
+  ObserverList<Observer> observers_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ImmersiveModeController);
 };
 
 namespace chrome {
 
 // Implemented in immersive_mode_controller_factory.cc.
 ImmersiveModeController* CreateImmersiveModeController();
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_H_