Add referrer & load flag support to BitmapFetcher class.

chrome/browser/profiles/profile_avatar_downloader.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/profiles/profile_avatar_downloader.h"
 
 #include "base/files/file_path.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
 #include "chrome/browser/profiles/profile_info_cache.h"
+#include "net/base/load_flags.h"
 
 namespace {
 const char kHighResAvatarDownloadUrlPrefix[] =
     "http://www.gstatic.com/chrome/profile_avatars/";
 }
 
 ProfileAvatarDownloader::ProfileAvatarDownloader(
     size_t icon_index,
     ProfileInfoCache* cache)
     : icon_index_(icon_index),
       cache_(cache) {
   GURL url(std::string(kHighResAvatarDownloadUrlPrefix) +
            profiles::GetDefaultAvatarIconFileNameAtIndex(icon_index));
   fetcher_.reset(new chrome::BitmapFetcher(url, this));
 }
 
 ProfileAvatarDownloader::~ProfileAvatarDownloader() {
 }
 
 void ProfileAvatarDownloader::Start() {
   // In unit tests, the browser process can return a NULL request context.
   net::URLRequestContextGetter* request_context =
       g_browser_process->system_request_context();
   if (request_context)
-    fetcher_->Start(request_context);
+    fetcher_->Start(
+        request_context,
+        "",
+        net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
+        net::LOAD_NORMAL);
 }
 
 // BitmapFetcherDelegate overrides.
 void ProfileAvatarDownloader::OnFetchComplete(const GURL url,
                                               const SkBitmap* bitmap) {
   if (!bitmap || !cache_)
     return;
 
   // Decode the downloaded bitmap. Ownership of the image is taken by |cache_|.
   gfx::Image image = gfx::Image::CreateFrom1xBitmap(*bitmap);
   cache_->SaveAvatarImageAtPath(&image,
       profiles::GetDefaultAvatarIconFileNameAtIndex(icon_index_),
       profiles::GetPathOfHighResAvatarAtIndex(icon_index_));
 }