Simplify tests by using Web*Impl types directly.

third_party/WebKit/Source/web/tests/sim/SimTest.cpp

 // 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.
 
 #include "web/tests/sim/SimTest.h"
 
 #include "core/dom/Document.h"
 #include "platform/LayoutTestSupport.h"
 #include "platform/scroll/ScrollbarTheme.h"
 #include "public/platform/WebSecurityOrigin.h"
@@ skipping 35 matching lines @@
     webView().mainFrameImpl()->loadRequest(request);
 }
 
 Document& SimTest::document()
 {
     return *webView().mainFrameImpl()->frame()->document();
 }
 
 WebViewImpl& SimTest::webView()
 {
-    return *m_webViewHelper.webViewImpl();
+    return *m_webViewHelper.webView();
 }
 
 const SimWebViewClient& SimTest::webViewClient() const
 {
     return m_webViewClient;
 }
 
 SimCompositor& SimTest::compositor()
 {
     return m_compositor;
 }
 
 } // namespace blink