First draft to enable turning off compositor for unit tests.

views/view.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 VIEWS_VIEW_H_
 #define VIEWS_VIEW_H_
 #pragma once
 
 #include <algorithm>
 #include <map>
@@ skipping 535 matching lines @@
   // because their drawing logic stays the same and they can become agnostic to
   // the UI directionality.
   void EnableCanvasFlippingForRTLUI(bool enable) {
     flip_canvas_on_paint_for_rtl_ui_ = enable;
   }
 
   // Accelerated painting ------------------------------------------------------
 
   // Enable/Disable accelerated compositing.
   static void set_use_acceleration_when_possible(bool use);
+  static bool get_use_acceleration_when_possible();
 
   // Input ---------------------------------------------------------------------
   // The points (and mouse locations) in the following functions are in the
   // view's coordinates, except for a RootView.
 
   // Returns the deepest visible descendant that contains the specified point.
   virtual View* GetEventHandlerForPoint(const gfx::Point& point);
 
   // Return the cursor that should be used for this view or the default cursor.
   // The event location is in the receiver's coordinate system. The caller is
@@ skipping 892 matching lines @@
   // The Windows-specific accessibility implementation for this View.
   scoped_refptr<NativeViewAccessibilityWin> native_view_accessibility_win_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_VIEW_H_