Introduce AsyncDocumentSubresourceFilter.

components/test_runner/mock_web_document_subresource_filter.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_MOCK_WEB_DOCUMENT_SUBRESOURCE_FILTER_H_
 #define COMPONENTS_TEST_RUNNER_MOCK_WEB_DOCUMENT_SUBRESOURCE_FILTER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "third_party/WebKit/public/platform/WebDocumentSubresourceFilter.h"
+#include "third_party/WebKit/public/platform/WebDocumentSubresourceFilterLoadPolicy.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 
 namespace blink {
 class WebURL;
 }  // namespace blink
 
 namespace test_runner {
 
 class MockWebDocumentSubresourceFilter
     : public blink::WebDocumentSubresourceFilter {
  public:
   explicit MockWebDocumentSubresourceFilter(
       const std::vector<std::string>& disallowed_path_suffixes);
   ~MockWebDocumentSubresourceFilter() override;
 
   // blink::WebDocumentSubresourceFilter:
-  LoadPolicy getLoadPolicy(const blink::WebURL& resource_url,
-                           blink::WebURLRequest::RequestContext) override;
+  blink::WebDocumentSubresourceFilterLoadPolicy getLoadPolicy(
+      const blink::WebURL& resource_url,
+      blink::WebURLRequest::RequestContext) override;
   void reportDisallowedLoad() override;
 
  private:
   std::vector<std::string> disallowed_path_suffixes_;
 
   DISALLOW_COPY_AND_ASSIGN(MockWebDocumentSubresourceFilter);
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_MOCK_WEB_DOCUMENT_SUBRESOURCE_FILTER_H_