ResourceFetcherTest: introduce FetchTestingPlatformSupport

third_party/WebKit/Source/core/fetch/FetchTestingPlatformSupport.cpp

Index: third_party/WebKit/Source/core/fetch/FetchTestingPlatformSupport.cpp
diff --git a/third_party/WebKit/Source/core/fetch/FetchTestingPlatformSupport.cpp b/third_party/WebKit/Source/core/fetch/FetchTestingPlatformSupport.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ce05ef4fb5c4e5bb98b8ad77c7884dcba3f66641
--- /dev/null
+++ b/third_party/WebKit/Source/core/fetch/FetchTestingPlatformSupport.cpp
@@ -0,0 +1,48 @@
+// Copyright 2017 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/fetch/FetchTestingPlatformSupport.h"
+
+#include "core/fetch/MockFetchContext.h"
+#include "platform/network/ResourceError.h"
+#include "platform/testing/weburl_loader_mock_factory_impl.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebURL.h"
+#include "public/platform/WebURLLoader.h"
+#include "public/platform/WebURLLoaderMockFactory.h"
+#include <memory>
+
+namespace blink {
+
+FetchTestingPlatformSupport::FetchTestingPlatformSupport()
+    : m_urlLoaderMockFactory(new WebURLLoaderMockFactoryImpl(this)) {}
+
+FetchTestingPlatformSupport::~FetchTestingPlatformSupport() = default;
+
+MockFetchContext* FetchTestingPlatformSupport::context() {
+  if (!m_context) {
+    m_context = MockFetchContext::create(
+        MockFetchContext::kShouldLoadNewResource,
+        currentThread()->scheduler()->loadingTaskRunner());
+  }
+  return m_context;
+}
+
+WebURLError FetchTestingPlatformSupport::cancelledError(
+    const WebURL& url) const {
+  return ResourceError(errorDomainBlinkInternal, -1, url.string(),
+                       "cancelledError for testing");
+}
+
+WebURLLoaderMockFactory*
+FetchTestingPlatformSupport::getURLLoaderMockFactory() {
+  return m_urlLoaderMockFactory.get();
+}
+
+WebURLLoader* FetchTestingPlatformSupport::createURLLoader() {
+  return m_urlLoaderMockFactory->createURLLoader(
+      m_oldPlatform->createURLLoader());
+}
+
+}  // namespace blink