Move ImageFetcher to its own target.

components/image_fetcher/ios/mock_raw_image_fetcher.h

Index: components/image_fetcher/ios/mock_raw_image_fetcher.h
diff --git a/components/image_fetcher/ios/mock_raw_image_fetcher.h b/components/image_fetcher/ios/mock_raw_image_fetcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..6ed9d99324e4937dc4ed5f37ad19642496d82d3a
--- /dev/null
+++ b/components/image_fetcher/ios/mock_raw_image_fetcher.h
@@ -0,0 +1,36 @@
+// Copyright 2015 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_IMAGE_FETCHER_IOS_MOCK_RAW_IMAGE_FETCHER_H_
+#define COMPONENTS_IMAGE_FETCHER_IOS_MOCK_RAW_IMAGE_FETCHER_H_
+
+#import "components/image_fetcher/ios/raw_image_fetcher.h"
+
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace image_fetcher {
+
+// Mock the RawImageFetcher utility class, which can be used to asynchronously
+// retrieve an image from an URL.
+class MockRawImageFetcher : public RawImageFetcher {
+ public:
+  explicit MockRawImageFetcher(
+      const scoped_refptr<base::TaskRunner>& task_runner);
+  ~MockRawImageFetcher() override;
+
+  MOCK_METHOD4(StartDownload,
+               void(const GURL& url,
+                    ImageFetchedCallback callback,
+                    const std::string& referrer,
+                    net::URLRequest::ReferrerPolicy referrer_policy));
+  MOCK_METHOD2(StartDownload,
+               void(const GURL& url, ImageFetchedCallback callback));
+  MOCK_METHOD1(SetRequestContextGetter,
+               void(const scoped_refptr<net::URLRequestContextGetter>&
+                        request_context_getter));
+};
+
+}  // namespace image_fetcher
+
+#endif  // COMPONENTS_IMAGE_FETCHER_IOS_MOCK_RAW_IMAGE_FETCHER_H_