Cache GAIA profile picture URL

chrome/browser/profiles/gaia_info_update_service.cc

Index: chrome/browser/profiles/gaia_info_update_service.cc
diff --git a/chrome/browser/profiles/gaia_info_update_service.cc b/chrome/browser/profiles/gaia_info_update_service.cc
index 0f58dc0d4b557cc0018d9f40d7aefb49d96ea4e3..b1672e084c87f443394957900ab2a4022e512871 100644
--- a/chrome/browser/profiles/gaia_info_update_service.cc
+++ b/chrome/browser/profiles/gaia_info_update_service.cc
@@ -78,6 +78,8 @@ bool GAIAInfoUpdateService::ShouldUseGAIAProfileInfo(Profile* profile) {
 void GAIAInfoUpdateService::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterInt64Pref(
       prefs::kProfileGAIAInfoUpdateTime, 0, PrefService::UNSYNCABLE_PREF);
+  prefs->RegisterStringPref(
+      prefs::kProfileGAIAInfoPictureURL, "", PrefService::UNSYNCABLE_PREF);
 }
 
 int GAIAInfoUpdateService::GetDesiredImageSideLength() {
@@ -88,6 +90,10 @@ Profile* GAIAInfoUpdateService::GetBrowserProfile() {
   return profile_;
 }
 
+std::string GAIAInfoUpdateService::GetCachedPictureURL() {
+  return profile_->GetPrefs()->GetString(prefs::kProfileGAIAInfoPictureURL);
+}
+
 void GAIAInfoUpdateService::OnDownloadComplete(ProfileDownloader* downloader,
                                                bool success) {
   // Save the last updated time.
@@ -103,6 +109,9 @@ void GAIAInfoUpdateService::OnDownloadComplete(ProfileDownloader* downloader,
 
   string16 full_name = downloader->GetProfileFullName();
   SkBitmap bitmap = downloader->GetProfilePicture();
+  ProfileDownloader::PictureResult picture_result =
+      downloader->GetProfilePictureResult();
+  std::string picture_url = downloader->GetProfilePictureURL();
   profile_image_downloader_.reset();
 
   ProfileInfoCache& cache =
@@ -112,8 +121,14 @@ void GAIAInfoUpdateService::OnDownloadComplete(ProfileDownloader* downloader,
     return;
 
   cache.SetGAIANameOfProfileAtIndex(profile_index, full_name);
-  gfx::Image gfx_image(new SkBitmap(bitmap));
-  cache.SetGAIAPictureOfProfileAtIndex(profile_index, &gfx_image);
+  if (picture_result == ProfileDownloader::PICTURE_SUCCESS) {
+    profile_->GetPrefs()->SetString(prefs::kProfileGAIAInfoPictureURL,
+                                    picture_url);
+    gfx::Image gfx_image(new SkBitmap(bitmap));
+    cache.SetGAIAPictureOfProfileAtIndex(profile_index, &gfx_image);
+  } else if (picture_result == ProfileDownloader::PICTURE_DEFAULT) {
+    cache.SetGAIAPictureOfProfileAtIndex(profile_index, NULL);
+  }
 
   // If this profile hasn't switched to using GAIA information for the profile
   // name and picture then switch it now. Once the profile has switched this