components: Cleanup class/struct fwd declarations

components/test_runner/test_runner_for_specific_view.h

 // Copyright 2016 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_TEST_RUNNER_FOR_SPECIFIC_VIEW_H_
 #define COMPONENTS_TEST_RUNNER_TEST_RUNNER_FOR_SPECIFIC_VIEW_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "v8/include/v8.h"
 
 class SkBitmap;
 
 namespace blink {
 class WebLocalFrame;
 class WebURLResponse;
 class WebView;
 }
 
 namespace gin {
-class ArrayBufferView;
 class Arguments;
 }
 
 namespace test_runner {
 
 class WebTestDelegate;
 class WebViewTestProxyBase;
 
 // TestRunnerForSpecificView implements part of |testRunner| javascript bindings
 // that work with a view where the javascript call originated from.  Examples:
@@ skipping 184 matching lines @@
   WebViewTestProxyBase* web_view_test_proxy_base_;
 
   base::WeakPtrFactory<TestRunnerForSpecificView> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunnerForSpecificView);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_TEST_RUNNER_FOR_SPECIFIC_VIEW_H_