components: Cleanup class/struct fwd declarations

components/test_runner/web_test_interfaces.h

 // Copyright 2013 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 COMPONENTS_TEST_RUNNER_WEB_TEST_INTERFACES_H_
 #define COMPONENTS_TEST_RUNNER_WEB_TEST_INTERFACES_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "components/test_runner/test_runner_export.h"
 
 namespace blink {
 class WebAudioDevice;
-class WebFrame;
 class WebFrameClient;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
 class WebRTCPeerConnectionHandler;
 class WebRTCPeerConnectionHandlerClient;
 class WebThemeEngine;
 class WebURL;
 class WebView;
@@ skipping 65 matching lines @@
 
  private:
   std::unique_ptr<TestInterfaces> interfaces_;
 
   DISALLOW_COPY_AND_ASSIGN(WebTestInterfaces);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_WEB_TEST_INTERFACES_H_