Pass the ImageDecoder to the ImageFetcher at creation time.

chrome/browser/search/thumbnail_source.cc

 // Copyright (c) 2012 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 "chrome/browser/search/thumbnail_source.h"
 
 #include <stddef.h>
 
 #include "base/callback.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/instant_io_context.h"
-#include "chrome/browser/search/suggestions/image_fetcher_impl.h"
+#include "chrome/browser/search/suggestions/image_decoder_impl.h"
 #include "chrome/browser/thumbnails/thumbnail_service.h"
 #include "chrome/browser/thumbnails/thumbnail_service_factory.h"
 #include "chrome/common/url_constants.h"
+#include "components/image_fetcher/image_fetcher_impl.h"
 #include "components/suggestions/image_encoder.h"
 #include "net/url_request/url_request.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 
 // The delimiter between the first url and the fallback url passed to
 // StartDataRequest.
 const char kUrlDelimiter[] = "?fb=";
 
 // Set ThumbnailService now as Profile isn't thread safe.
 ThumbnailSource::ThumbnailSource(Profile* profile, bool capture_thumbnails)
     : thumbnail_service_(ThumbnailServiceFactory::GetForProfile(profile)),
       capture_thumbnails_(capture_thumbnails),
       weak_ptr_factory_(this) {
   image_fetcher_.reset(
-      new suggestions::ImageFetcherImpl(profile->GetRequestContext()));
+      new image_fetcher::ImageFetcherImpl(
+          base::MakeUnique<suggestions::ImageDecoderImpl>(),
+          profile->GetRequestContext()));
 }
 
 ThumbnailSource::~ThumbnailSource() {
 }
 
 std::string ThumbnailSource::GetSource() const {
   return capture_thumbnails_ ?
       chrome::kChromeUIThumbnailHost2 : chrome::kChromeUIThumbnailHost;
 }
 
@@ skipping 78 matching lines @@
   const SkBitmap* bitmap = image.ToSkBitmap();
   scoped_refptr<base::RefCountedBytes> encoded_data(
       new base::RefCountedBytes());
   if (!suggestions::EncodeSkBitmapToJPEG(*bitmap, &encoded_data->data())) {
     callback.Run(default_thumbnail_.get());
     return;
   }
 
   callback.Run(encoded_data.get());
 }