[MD] Fix clipping of infobar child elements (particularly close button).

chrome/browser/ui/views/dropdown_bar_host.h

 // Copyright (c) 2011 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_DROPDOWN_BAR_HOST_H_
 #define CHROME_BROWSER_UI_VIEWS_DROPDOWN_BAR_HOST_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 136 matching lines @@
 
  private:
   // Set the view whose position in the |browser_view_| view hierarchy
   // determines the z-order of |host_| relative to views with layers and
   // views with associated NativeViews.
   void SetHostViewNative(views::View* host_view);
 
   // The BrowserView that created us.
   BrowserView* browser_view_;
 
-  // A parent View to |view_| that is used to clip when animating the bar
-  // between the shown and hidden states.
-  views::View* clip_view_;
-
   // Our view, which is responsible for drawing the UI.
   views::View* view_;
   DropdownBarHostDelegate* delegate_;
 
   // The animation class to use when opening the Dropdown widget.
   scoped_ptr<gfx::SlideAnimation> animation_;
 
   // The focus manager we register with to keep track of focus changes.
   views::FocusManager* focus_manager_;
 
@@ skipping 10 matching lines @@
   scoped_ptr<views::Widget> host_;
 
   // A flag to manually manage visibility. GTK/X11 is asynchronous and
   // the state of the widget can be out of sync.
   bool is_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(DropdownBarHost);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_DROPDOWN_BAR_HOST_H_