AssociatedURLLoader shouldn't derive from WebURLLoader

content/test/mock_weburlloader.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 CONTENT_TEST_MOCK_WEBURLLOADER_H_
-#define CONTENT_TEST_MOCK_WEBURLLOADER_H_
-
-#include "base/macros.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "third_party/WebKit/public/platform/WebURLLoader.h"
-
-namespace content {
-
-class MockWebURLLoader : public blink::WebURLLoader {
- public:
-  MockWebURLLoader();
-  virtual ~MockWebURLLoader();
-
-  MOCK_METHOD5(loadSynchronously,
-               void(const blink::WebURLRequest& request,
-                    blink::WebURLResponse& response,
-                    blink::WebURLError& error,
-                    blink::WebData& data,
-                    int64_t& encodedDataLength));
-  MOCK_METHOD2(loadAsynchronously, void(const blink::WebURLRequest& request,
-                                        blink::WebURLLoaderClient* client));
-  MOCK_METHOD0(cancel, void());
-  MOCK_METHOD1(setDefersLoading, void(bool value));
-  MOCK_METHOD1(setLoadingTaskRunner,
-               void(blink::WebTaskRunner* loading_task_runner));
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(MockWebURLLoader);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_TEST_MOCK_WEBURLLOADER_H_