Move iOS ImageFetcher to ios/web/public

ios/web/public/image_fetcher/mock_raw_image_fetcher.mm

Index: ios/web/public/image_fetcher/mock_raw_image_fetcher.mm
diff --git a/ios/web/public/image_fetcher/mock_raw_image_fetcher.mm b/ios/web/public/image_fetcher/mock_raw_image_fetcher.mm
new file mode 100644
index 0000000000000000000000000000000000000000..84d4929e8d22fbc8915ef48a59f59ce6a4a3f7be
--- /dev/null
+++ b/ios/web/public/image_fetcher/mock_raw_image_fetcher.mm
@@ -0,0 +1,15 @@
+// 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.
+
+#import "ios/web/public/image_fetcher/mock_raw_image_fetcher.h"
+
+namespace web {
+
+MockRawImageFetcher::MockRawImageFetcher(
+    const scoped_refptr<base::TaskRunner>& task_runner)
+    : RawImageFetcher(task_runner) {}
+
+MockRawImageFetcher::~MockRawImageFetcher() {}
+
+}  // namespace web