Add test plumbing so that layout tests can query whether a compositor frame was requested

content/shell/renderer/test_runner/WebTestProxy.h

 // Copyright 2013 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_SHELL_RENDERER_TEST_RUNNER_WEBTESTPROXY_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_WEBTESTPROXY_H_
 
 #include <map>
 #include <string>
 
@@ skipping 116 matching lines @@
 
     void postSpellCheckEvent(const blink::WebString& eventName);
 
 protected:
     WebTestProxyBase();
     ~WebTestProxyBase();
 
     void didInvalidateRect(const blink::WebRect&);
     void didScrollRect(int, int, const blink::WebRect&);
     void scheduleAnimation();
+    bool isCompositorFramePending() const;
     // FIXME: Remove once we switch to use didForceResize.
     void setWindowRect(const blink::WebRect&);
     void show(blink::WebNavigationPolicy);
     void didAutoResize(const blink::WebSize&);
     void postAccessibilityEvent(const blink::WebAXObject&, blink::WebAXEvent);
     void startDragging(blink::WebFrame*, const blink::WebDragData&, blink::WebDragOperationsMask, const blink::WebImage&, const blink::WebPoint&);
     void didChangeSelection(bool isEmptySelection);
     void didChangeContents();
     void didEndEditing();
     bool createView(blink::WebFrame* creator, const blink::WebURLRequest&, const blink::WebWindowFeatures&, const blink::WebString& frameName, blink::WebNavigationPolicy, bool suppressOpener);
@@ skipping 104 matching lines @@
         WebTestProxyBase::didScrollRect(dx, dy, clipRect);
     }
     virtual void scheduleComposite()
     {
         WebTestProxyBase::scheduleComposite();
     }
     virtual void scheduleAnimation()
     {
         WebTestProxyBase::scheduleAnimation();
     }
+    virtual bool isCompositorFramePending() const
+    {
+        return WebTestProxyBase::isCompositorFramePending();
+    }
     virtual void setWindowRect(const blink::WebRect& rect)
     {
         WebTestProxyBase::setWindowRect(rect);
         Base::setWindowRect(rect);
     }
     virtual void show(blink::WebNavigationPolicy policy)
     {
         WebTestProxyBase::show(policy);
         Base::show(policy);
     }
@@ skipping 248 matching lines @@
         WebTestProxyBase::postSpellCheckEvent(eventName);
     }
 
 private:
     DISALLOW_COPY_AND_ASSIGN(WebTestProxy);
 };
 
 }
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_WEBTESTPROXY_H_