Remove rootWindowRect from WebWidgetClient and move it to WebViewClient.

content/renderer/render_view_impl.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 CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 288 matching lines @@
   void convertWindowToViewport(blink::WebFloatRect* rect) override;
   void didInvalidateRect(const blink::WebRect& rect) override;
   void didOverscroll(const blink::WebFloatSize& overscrollDelta,
                      const blink::WebFloatSize& accumulatedOverscroll,
                      const blink::WebFloatPoint& positionInViewport,
                      const blink::WebFloatSize& velocityInViewport) override;
   void didUpdateTextOfFocusedElementByNonUserInput() override;
   void hasTouchEventHandlers(bool has_handlers) override;
   blink::WebLayerTreeView* layerTreeView() override;
   void resetInputMethod() override;
-  blink::WebRect rootWindowRect() override;
   void scheduleAnimation() override;
   blink::WebScreenInfo screenInfo() override;
   void setToolTipText(const blink::WebString&,
                       blink::WebTextDirection hint) override;
   void setTouchAction(blink::WebTouchAction touchAction) override;
   void setWindowRect(const blink::WebRect& rect) override;
   void showImeIfNeeded() override;
   void showUnhandledTapUIIfNeeded(const blink::WebPoint& tappedPosition,
                                   const blink::WebNode& tappedNode,
                                   bool pageChanged) override;
@@ skipping 54 matching lines @@
   int historyForwardListCount() override;
   blink::WebSpeechRecognizer* speechRecognizer() override;
   void zoomLimitsChanged(double minimum_level, double maximum_level) override;
   virtual void zoomLevelChanged();
   void pageScaleFactorChanged() override;
   virtual double zoomLevelToZoomFactor(double zoom_level) const;
   virtual double zoomFactorToZoomLevel(double factor) const;
   void draggableRegionsChanged() override;
   void pageImportanceSignalsChanged() override;
   void didAutoResize(const blink::WebSize& newSize) override;
+  blink::WebRect rootWindowRect() override;
 
 #if defined(OS_ANDROID)
   void scheduleContentIntent(const blink::WebURL& intent,
                              bool is_main_frame) override;
   void cancelScheduledContentIntents() override;
   blink::WebContentDetectionResult detectContentAround(
       const blink::WebHitTestResult& touch_hit) override;
 
   // Only used on Android since all other platforms implement
   // date and time input fields using MULTIPLE_FIELDS_UI
@@ skipping 544 matching lines @@
   // use the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_