Show third party wallpaper app name in wallpaper picker

chrome/browser/chromeos/extensions/wallpaper_private_api.cc

Index: chrome/browser/chromeos/extensions/wallpaper_private_api.cc
diff --git a/chrome/browser/chromeos/extensions/wallpaper_private_api.cc b/chrome/browser/chromeos/extensions/wallpaper_private_api.cc
index fa62a40517d70d7b173c027d7b9ab2c09bfb297c..f944243b4a3bb6767f45430d605cca8ec014e81e 100644
--- a/chrome/browser/chromeos/extensions/wallpaper_private_api.cc
+++ b/chrome/browser/chromeos/extensions/wallpaper_private_api.cc
@@ -263,6 +263,8 @@ bool WallpaperPrivateGetStringsFunction::RunSync() {
   SET_STRING("invalidWallpaper", IDS_WALLPAPER_MANAGER_INVALID_WALLPAPER);
   SET_STRING("surpriseMeLabel", IDS_WALLPAPER_MANAGER_SURPRISE_ME_LABEL);
   SET_STRING("learnMore", IDS_LEARN_MORE);
+  SET_STRING("currentWallpaperSetByMessage",
+             IDS_CURRENT_WALLPAPER_SET_BY_MESSAGE);
 #undef SET_STRING
 
   webui::SetFontAndTextDirection(dict);
@@ -278,6 +280,12 @@ bool WallpaperPrivateGetStringsFunction::RunSync() {
   dict->SetString("manifestBaseURL", kWallpaperManifestBaseURL);
 #endif
 
+  Profile* profile = Profile::FromBrowserContext(browser_context());
+  std::string app_name(
+      profile->GetPrefs()->GetString(prefs::kCurrentWallpaperAppName));
+  if (!app_name.empty())
+    dict->SetString("wallpaperAppName", app_name);
+
   dict->SetBoolean("isOEMDefaultWallpaper", IsOEMDefaultWallpaper());
   dict->SetString("canceledWallpaper",
                   wallpaper_api_util::kCancelWallpaperMessage);