Add WebWidgetTestProxy.

third_party/WebKit/Source/web/WebViewFrameWidget.h

 // Copyright 2015 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 WebViewFrameWidget_h
 #define WebViewFrameWidget_h
 
 #include "platform/heap/Handle.h"
 #include "web/WebFrameWidgetBase.h"
+#include "web/WebLocalFrameImpl.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
-class WebLocalFrameImpl;
 class WebViewImpl;
 class WebWidgetClient;
 
 // Shim class to help normalize the widget interfaces in the Blink public API.
 // For OOPI, subframes have WebFrameWidgets for input and rendering.
 // Unfortunately, the main frame still uses WebView's WebWidget for input and
 // rendering. This results in complex code, since there are two different
 // implementations of WebWidget and code needs to have branches to handle both
 // cases.
 // This class allows a Blink embedder to create a WebFrameWidget that can be
@@ skipping 59 matching lines @@
     void didNotAcquirePointerLock() override;
     void didLosePointerLock() override;
     void didChangeWindowResizerRect() override;
     WebColor backgroundColor() const override;
     WebPagePopup* pagePopup() const override;
     void updateTopControlsState(WebTopControlsState constraints, WebTopControlsState current, bool animate) override;
     void setVisibilityState(WebPageVisibilityState) override;
     bool isTransparent() const override;
     void setIsTransparent(bool) override;
     void setBaseBackgroundColor(WebColor) override;
+    WebLocalFrameImpl* localRoot() override;
 
     // WebFrameWidgetBase overrides:
     bool forSubframe() const override { return false; }
     void scheduleAnimation() override;
     CompositorProxyClient* createCompositorProxyClient() override;
     void setRootGraphicsLayer(GraphicsLayer*) override;
     void attachCompositorAnimationTimeline(CompositorAnimationTimeline*) override;
     void detachCompositorAnimationTimeline(CompositorAnimationTimeline*) override;
     WebWidgetClient* client() const override { return m_client; }
 
 private:
     WebWidgetClient* m_client;
     RefPtr<WebViewImpl> m_webView;
     Persistent<WebLocalFrameImpl> m_mainFrame;
 };
 
 } // namespace blink
 
 #endif // WebViewFrameWidget_h