Eliminate Shell::RootWindowList in favor of aura::Window::Windows.

ash/wm/partial_screenshot_view.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 ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
 #define ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_
 
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "ui/gfx/point.h"
 #include "ui/views/widget/widget_delegate.h"
 
-namespace aura {
-class RootWindow;
-}
-
 namespace ash {
 class ScreenshotDelegate;
 
 // The view of taking partial screenshot, i.e.: drawing region
 // rectangles during drag, and changing the mouse cursor to indicate
 // the current mode.
 class ASH_EXPORT PartialScreenshotView : public views::WidgetDelegateView {
  public:
   // Starts the UI for taking partial screenshot; dragging to select a region.
   // PartialScreenshotViews manage their own lifetime so caller must not delete
   // the returned PartialScreenshotViews.
   static std::vector<PartialScreenshotView*>
       StartPartialScreenshot(ScreenshotDelegate* screenshot_delegate);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicMouse);
   FRIEND_TEST_ALL_PREFIXES(PartialScreenshotViewTest, BasicTouch);
 
   class OverlayDelegate;
 
   PartialScreenshotView(OverlayDelegate* overlay_delegate,
                         ScreenshotDelegate* screenshot_delegate);
   virtual ~PartialScreenshotView();
 
   // Initializes partial screenshot UI widget for |root_window|.
-  void Init(aura::RootWindow* root_window);
+  void Init(aura::Window* root_window);
 
   // Returns the currently selected region.
   gfx::Rect GetScreenshotRect() const;
 
   void OnSelectionStarted(const gfx::Point& position);
   void OnSelectionChanged(const gfx::Point& position);
   void OnSelectionFinished();
 
   // Overridden from views::View:
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
@@ skipping 14 matching lines @@
 
   // ScreenshotDelegate to take the actual screenshot. No ownership.
   ScreenshotDelegate* screenshot_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(PartialScreenshotView);
 };
 
 }  // namespace ash
 
 #endif  // #ifndef ASH_WM_PARTIAL_SCREENSHOT_VIEW_H_