Adds a GetWindow method to View.

chrome/views/view.h

 // Copyright (c) 2006-2008 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_VIEWS_VIEW_H_
 #define CHROME_VIEWS_VIEW_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
@@ skipping 27 matching lines @@
 
 class Background;
 class Border;
 class FocusManager;
 class FocusTraversable;
 class LayoutManager;
 class RestoreFocusTask;
 class RootView;
 class ScrollView;
 class Widget;
+class Window;
 
 // ContextMenuController is responsible for showing the context menu for a
 // View. To use a ContextMenuController invoke SetContextMenuController on a
 // View. When the appropriate user gesture occurs ShowContextMenu is invoked
 // on the ContextMenuController.
 //
 // Setting a ContextMenuController on a view makes the view process mouse
 // events.
 //
 // It is up to subclasses that do their own mouse processing to invoke
@@ skipping 368 matching lines @@
 
   // Get the number of child Views.
   int GetChildViewCount() const;
 
   // Get the child View at the specified point.
   virtual View* GetViewForPoint(const gfx::Point& point);
 
   // Get the Widget that hosts this View, if any.
   virtual Widget* GetWidget() const;
 
+  // Gets the Widget that most closely contains this View, if any.
+  virtual Window* GetWindow() const;
+
   // Get the containing RootView
   virtual RootView* GetRootView();
 
   // Get the parent View
   View* GetParent() const { return parent_; }
 
   // Returns the index of the specified |view| in this view's children, or -1
   // if the specified view is not a child of this view.
   int GetChildIndex(View* v) const;
 
@@ skipping 892 matching lines @@
   // is going to be flipped horizontally (using the appropriate transform) on
   // right-to-left locales for this View.
   bool flip_canvas_on_paint_for_rtl_ui_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // CHROME_VIEWS_VIEW_H_