Remove the Views bubble double widget hack.

ui/views/bubble/bubble_delegate.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 UI_VIEWS_BUBBLE_BUBBLE_DELEGATE_H_
 #define UI_VIEWS_BUBBLE_BUBBLE_DELEGATE_H_
 
 #include "base/gtest_prod_util.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/views/bubble/bubble_border.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace gfx {
 class Rect;
 class SlideAnimation;
 }
 
 namespace views {
 
-class BubbleBorderDelegate;
 class BubbleFrameView;
 
 // BubbleDelegateView creates frame and client views for bubble Widgets.
 // BubbleDelegateView itself is the client's contents view.
-//
-///////////////////////////////////////////////////////////////////////////////
 class VIEWS_EXPORT BubbleDelegateView : public WidgetDelegateView,
                                         public gfx::AnimationDelegate,
                                         public WidgetObserver {
  public:
   BubbleDelegateView();
   BubbleDelegateView(View* anchor_view, BubbleBorder::Arrow arrow);
   virtual ~BubbleDelegateView();
 
   // Create and initialize the bubble Widget(s) with proper bounds.
   static Widget* CreateBubble(BubbleDelegateView* bubble_delegate);
@@ skipping 124 matching lines @@
 
  private:
   friend class BubbleBorderDelegate;
 
   FRIEND_TEST_ALL_PREFIXES(BubbleDelegateTest, CreateDelegate);
   FRIEND_TEST_ALL_PREFIXES(BubbleDelegateTest, NonClientHitTest);
 
   // Update the bubble color from |theme|, unless it was explicitly set.
   void UpdateColorsFromTheme(const ui::NativeTheme* theme);
 
-#if defined(OS_WIN) && !defined(USE_AURA)
-  // Get bounds for the Windows-only widget that hosts the bubble's contents.
-  gfx::Rect GetBubbleClientBounds() const;
-#endif
-
   // Handles widget visibility changes.
   void HandleVisibilityChanged(Widget* widget, bool visible);
 
   // Fade animation for bubble.
   scoped_ptr<gfx::SlideAnimation> fade_animation_;
 
   // Flags controlling bubble closure on the escape key and deactivation.
   bool close_on_esc_;
   bool close_on_deactivate_;
 
@@ skipping 44 matching lines @@
 
   // Parent native window of the bubble.
   gfx::NativeView parent_window_;
 
   DISALLOW_COPY_AND_ASSIGN(BubbleDelegateView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_BUBBLE_BUBBLE_DELEGATE_H_