Unit Test for WebView animating in and out of screen

android_webview/browser/test/rendering_test.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 ANDROID_WEBVIEW_BROWSER_TEST_RENDERING_TEST_H_
 #define ANDROID_WEBVIEW_BROWSER_TEST_RENDERING_TEST_H_
 
 #include "android_webview/browser/browser_view_renderer_client.h"
 #include "android_webview/browser/test/fake_window.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 32 matching lines @@
                          float max_page_scale_factor) override {}
   void DidOverscroll(gfx::Vector2d overscroll_delta) override {}
 
   // WindowHooks overrides.
   void WillOnDraw() override {}
   void DidOnDraw(bool success) override {}
   void WillSyncOnRT(SharedRendererState* functor) override {}
   void DidSyncOnRT(SharedRendererState* functor) override {}
   void WillProcessOnRT(SharedRendererState* functor) override {}
   void DidProcessOnRT(SharedRendererState* functor) override {}
-  void WillDrawOnRT(SharedRendererState* functor) override {}
+  bool WillDrawOnRT(SharedRendererState* functor) override;
   void DidDrawOnRT(SharedRendererState* functor) override {}
 
  protected:
   RenderingTest();
   ~RenderingTest() override;
 
   virtual void SetUpTestHarness();
   virtual void StartTest();
 
   void RunTest();
@@ skipping 14 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(RenderingTest);
 };
 
 #define RENDERING_TEST_F(TEST_FIXTURE_NAME)         \
   TEST_F(TEST_FIXTURE_NAME, RunTest) { RunTest(); } \
   class NeedsSemicolon##TEST_FIXTURE_NAME {}
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_TEST_RENDERING_TEST_H_