[Profiles] Downloading high res avatars should do nothing on non-desktop

chrome/browser/profiles/profile_info_cache.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/profiles/profile_info_cache.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/i18n/case_conversion.h"
 #include "base/logging.h"
@@ skipping 814 matching lines @@
 }
 
 // static
 void ProfileInfoCache::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterDictionaryPref(prefs::kProfileInfoCache);
 }
 
 void ProfileInfoCache::DownloadHighResAvatar(
     size_t icon_index,
     const base::FilePath& profile_path) {
+  // Downloading is only supported on desktop.
+#if defined(OS_ANDROID) || defined(OS_IOS) || defined(OS_CHROMEOS)
+  return;
+#endif
+
   // TODO(noms): We should check whether the file already exists on disk
   // before trying to re-download it. For now, since this is behind a flag and
   // the resources are still changing, re-download it every time the profile
   // avatar changes, to make sure we have the latest copy.
   std::string file_name = profiles::GetDefaultAvatarIconFileNameAtIndex(
       icon_index);
   // If the file is already being downloaded, don't start another download.
   if (avatar_images_downloads_in_progress_[file_name])
     return;
 
@@ skipping 204 matching lines @@
                     OnProfileAvatarChanged(profile_path));
 
   // Remove the file from the list of downloads in progress. Note that this list
   // only contains the high resolution avatars, and not the Gaia profile images.
   if (!avatar_images_downloads_in_progress_[file_name])
     return;
 
   delete avatar_images_downloads_in_progress_[file_name];
   avatar_images_downloads_in_progress_[file_name] = NULL;
 }