Network traffic annotation added to image_data_fetcher.

components/image_fetcher/core/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 "components/image_fetcher/core/image_fetcher_impl.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "net/base/load_flags.h"
@@ skipping 33 matching lines @@
 }
 
 void ImageFetcherImpl::SetImageDownloadLimit(
     base::Optional<int64_t> max_download_bytes) {
   image_data_fetcher_->SetImageDownloadLimit(max_download_bytes);
 }
 
 void ImageFetcherImpl::StartOrQueueNetworkRequest(
     const std::string& id,
     const GURL& image_url,
-    const ImageFetcherCallback& callback) {
+    const ImageFetcherCallback& callback,
+    const net::NetworkTrafficAnnotationTag& traffic_annotation) {
   // 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()) {
     ImageRequest request;
     request.id = id;
     request.callbacks.push_back(callback);
     pending_net_requests_[image_url].swap(&request);
 
     image_data_fetcher_->FetchImageData(
-        image_url, base::Bind(&ImageFetcherImpl::OnImageURLFetched,
-                              base::Unretained(this), image_url));
+        image_url,
+        base::Bind(&ImageFetcherImpl::OnImageURLFetched, base::Unretained(this),
+                   image_url),
+        traffic_annotation);
   } else {
     // Request in progress. Register as an interested callback.
     it->second.callbacks.push_back(callback);
   }
 }
 
 void ImageFetcherImpl::OnImageURLFetched(const GURL& image_url,
                                          const std::string& image_data,
                                          const RequestMetadata& metadata) {
   // Inform the ImageFetcherDelegate.
@@ skipping 29 matching lines @@
 
   // Erase the completed ImageRequest.
   pending_net_requests_.erase(image_iter);
 }
 
 ImageDecoder* ImageFetcherImpl::GetImageDecoder() {
   return image_decoder_.get();
 }
 
 }  // namespace image_fetcher