Add possibility to define data callback to BitmapFetcher

chrome/browser/search/suggestions/image_fetcher_impl.cc

 // 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.
 
 #include "chrome/browser/search/suggestions/image_fetcher_impl.h"
 
 #include <string>
 
 #include "content/public/browser/browser_thread.h"
 #include "net/base/load_flags.h"
@@ skipping 24 matching lines @@
     base::Callback<void(const GURL&, const SkBitmap*)> callback) {
   // Before starting to fetch the image. Look for a request in progress for
   // |image_url|, and queue if appropriate.
   ImageRequestMap::iterator it = pending_net_requests_.find(image_url);
   if (it == pending_net_requests_.end()) {
     // |image_url| is not being fetched, so create a request and initiate
     // the fetch.
     ImageRequest request(new chrome::BitmapFetcher(image_url, this));
     request.url = url;
     request.callbacks.push_back(callback);
-    request.fetcher->Start(
+    request.fetcher->Init(
         url_request_context_, std::string(),
         net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
         net::LOAD_NORMAL);
+    request.fetcher->Start();
     pending_net_requests_[image_url].swap(&request);
   } else {
     // Request in progress. Register as an interested callback.
     it->second.callbacks.push_back(callback);
   }
 }
 
 void ImageFetcherImpl::OnFetchComplete(const GURL& image_url,
                                        const SkBitmap* bitmap) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
@@ skipping 14 matching lines @@
   // Inform the ImageFetcherDelegate.
   if (delegate_) {
     delegate_->OnImageFetched(request->url, bitmap);
   }
 
   // Erase the completed ImageRequest.
   pending_net_requests_.erase(image_iter);
 }
 
 }  // namespace suggestions