Move common ImageFetcher component files to core/

components/image_fetcher/core/image_decoder.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_IMAGE_FETCHER_IMAGE_DECODER_H_
-#define COMPONENTS_IMAGE_FETCHER_IMAGE_DECODER_H_
+#ifndef COMPONENTS_IMAGE_FETCHER_CORE_IMAGE_DECODER_H_
+#define COMPONENTS_IMAGE_FETCHER_CORE_IMAGE_DECODER_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
 
 namespace gfx {
 class Image;
 class Size;
 }  // namespace gfx
@@ skipping 19 matching lines @@
   virtual void DecodeImage(const std::string& image_data,
                            const gfx::Size& desired_image_frame_size,
                            const ImageDecodedCallback& callback) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ImageDecoder);
 };
 
 }  // namespace image_fetcher
 
-#endif  // COMPONENTS_IMAGE_FETCHER_IMAGE_DECODER_H_
+#endif  // COMPONENTS_IMAGE_FETCHER_CORE_IMAGE_DECODER_H_