Change all test cases to use WebViewBase instead of WebViewImpl.

third_party/WebKit/Source/web/tests/AnimationSimTest.cpp

 // Copyright 2017 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.
 
 #include "core/animation/ElementAnimation.h"
 #include "core/css/PropertyDescriptor.h"
 #include "core/css/PropertyRegistration.h"
+#include "core/page/Page.h"
 #include "platform/wtf/CurrentTime.h"
 #include "public/web/WebScriptSource.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/tests/sim/SimCompositor.h"
 #include "web/tests/sim/SimDisplayItemList.h"
 #include "web/tests/sim/SimRequest.h"
 #include "web/tests/sim/SimTest.h"
 
 namespace blink {
 
@@ skipping 74 matching lines @@
       *target, StringKeyframeEffectModel::Create(keyframes), timing);
 
   // This (previously) would not clear the existing baseComputedStyle and would
   // crash on the equality assertion in the exit frame when it tried to update
   // it.
   Compositor().BeginFrame(1);
   Compositor().BeginFrame(1);
 }
 
 }  // namespace blink