Change all test cases to use WebViewBase instead of WebViewImpl.

third_party/WebKit/Source/web/tests/DocumentLoaderTest.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 "core/loader/DocumentLoader.h"
 
 #include <queue>
 #include "core/page/Page.h"
 #include "platform/testing/URLTestHelpers.h"
 #include "platform/testing/UnitTestHelpers.h"
@@ skipping 152 matching lines @@
   Platform::Current()->GetURLLoaderMockFactory()->SetLoaderDelegate(nullptr);
 
   EXPECT_TRUE(delegate.ServedReentrantly());
 
   // delegate is a WebFrameClient and stack-allocated, so manually reset() the
   // WebViewHelper here.
   web_view_helper_.Reset();
 }
 
 TEST_F(DocumentLoaderTest, isCommittedButEmpty) {
-  WebViewImpl* web_view_impl =
+  WebViewBase* web_view_impl =
       web_view_helper_.InitializeAndLoad("about:blank", true);
   EXPECT_TRUE(ToLocalFrame(web_view_impl->GetPage()->MainFrame())
                   ->Loader()
                   .GetDocumentLoader()
                   ->IsCommittedButEmpty());
 }
 
 }  // namespace blink