Simplify tests by using Web*Impl types directly.

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

Index: third_party/WebKit/Source/web/tests/ScreenWakeLockTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/ScreenWakeLockTest.cpp b/third_party/WebKit/Source/web/tests/ScreenWakeLockTest.cpp
index 78a970a4b27235849b13ba1913ddda7d8e2d700f..7eb6de98a36b6e279477c88693043b41f390b618 100644
--- a/third_party/WebKit/Source/web/tests/ScreenWakeLockTest.cpp
+++ b/third_party/WebKit/Source/web/tests/ScreenWakeLockTest.cpp
@@ -100,14 +100,14 @@ protected:
         blink::FrameTestHelpers::loadFrame(
             m_webViewHelper.webView()->mainFrame(),
             "http://example.com/foo.html");
-        m_webViewHelper.webViewImpl()->updateAllLifecyclePhases();
+        m_webViewHelper.webView()->updateAllLifecyclePhases();
     }
 
     blink::LocalFrame* frame()
     {
-        DCHECK(m_webViewHelper.webViewImpl());
-        DCHECK(m_webViewHelper.webViewImpl()->mainFrameImpl());
-        return m_webViewHelper.webViewImpl()->mainFrameImpl()->frame();
+        DCHECK(m_webViewHelper.webView());
+        DCHECK(m_webViewHelper.webView()->mainFrameImpl());
+        return m_webViewHelper.webView()->mainFrameImpl()->frame();
     }
 
     blink::Screen* screen()