Set desired_image_size when decoding images for NTP Tile icons.

components/image_fetcher/image_fetcher_impl.h

 // Copyright 2014 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_FETCHER_IMPL_H_
 #define COMPONENTS_IMAGE_FETCHER_IMAGE_FETCHER_IMPL_H_
 
 #include <map>
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "components/image_fetcher/image_data_fetcher.h"
 #include "components/image_fetcher/image_decoder.h"
 #include "components/image_fetcher/image_fetcher.h"
+#include "ui/gfx/geometry/size.h"
 #include "url/gurl.h"
 
 namespace gfx {
 class Image;
 }
 
 namespace net {
 class URLRequestContextGetter;
 }
 
 namespace image_fetcher {
 
 // The standard (non-test) implementation of ImageFetcher.
 class ImageFetcherImpl : public image_fetcher::ImageFetcher {
  public:
   ImageFetcherImpl(
       std::unique_ptr<ImageDecoder> image_decoder,
       net::URLRequestContextGetter* url_request_context);
   ~ImageFetcherImpl() override;
 
   // Sets the |delegate| of the ImageFetcherImpl. The |delegate| has to be alive
   // during the lifetime of the ImageFetcherImpl object. It is the caller's
   // responsibility to ensure this.
   void SetImageFetcherDelegate(ImageFetcherDelegate* delegate) override;
 
   // Sets a service name against which to track data usage.
   void SetDataUseServiceName(DataUseServiceName data_use_service_name) override;
 
+  // Sets the desired size for images with multiple frames (like .ico files).
+  void SetDesiredImageFrameSize(const gfx::Size& size) override;
+
   void StartOrQueueNetworkRequest(
       const std::string& id,
       const GURL& image_url,
       base::Callback<void(const std::string&, const gfx::Image&)> callback)
       override;
 
  private:
   using CallbackVector =
       std::vector<base::Callback<void(const std::string&, const gfx::Image&)>>;
 
@@ skipping 19 matching lines @@
   // Processes image URL fetched events. This is the continuation method used
   // for creating callbacks that are passed to the ImageDataFetcher.
   void OnImageURLFetched(const GURL& image_url,
                          const std::string& image_data,
                          const RequestMetadata& metadata);
 
   // Processes image decoded events. This is the continuation method used for
   // creating callbacks that are passed to the ImageDecoder.
   void OnImageDecoded(const GURL& image_url, const gfx::Image& image);
 
+  ImageFetcherDelegate* delegate_;
 
-  ImageFetcherDelegate* delegate_;
+  gfx::Size desired_image_frame_size_;
 
   scoped_refptr<net::URLRequestContextGetter> url_request_context_;
 
   std::unique_ptr<ImageDecoder> image_decoder_;
 
   std::unique_ptr<ImageDataFetcher> image_data_fetcher_;
 
   // Map from each image URL to the request information (associated website
   // url, fetcher, pending callbacks).
   ImageRequestMap pending_net_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageFetcherImpl);
 };
 
 }  // namespace image_fetcher
 
 #endif  // COMPONENTS_IMAGE_FETCHER_IMAGE_FETCHER_IMPL_H_