[Ozone-GBM] Pumb DriWindowDelegate throughout the platform

ui/ozone/platform/dri/dri_vsync_provider.h

 // Copyright 2014 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_OZONE_PLATFORM_IMPL_DRI_VSYNC_PROVIDER_H_
 #define UI_OZONE_PLATFORM_IMPL_DRI_VSYNC_PROVIDER_H_
 
-#include "base/memory/weak_ptr.h"
 #include "ui/gfx/vsync_provider.h"
 
 namespace ui {
 
-class HardwareDisplayController;
+class DriWindowDelegate;
 
 class DriVSyncProvider : public gfx::VSyncProvider {
  public:
-  DriVSyncProvider(const base::WeakPtr<HardwareDisplayController>& controller);
+  DriVSyncProvider(DriWindowDelegate* window_delegate);
   virtual ~DriVSyncProvider();
 
   virtual void GetVSyncParameters(const UpdateVSyncCallback& callback) OVERRIDE;
 
  private:
-  base::WeakPtr<HardwareDisplayController> controller_;
+  DriWindowDelegate* window_delegate_;  // Not owned.
 
   DISALLOW_COPY_AND_ASSIGN(DriVSyncProvider);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_IMPL_DRI_VSYNC_PROVIDER_H_