Change NotifyAppList*() functions into observers on a ProfileKeyedService.

chrome/browser/ui/ash/app_list/app_list_controller_ash.cc

Index: chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
diff --git a/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc b/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
index 73d1abd6ab33c292b84e7888227a3149c1b142c0..a736cfd6440e640816a31846efd00c0fde660e80 100644
--- a/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
+++ b/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
@@ -85,23 +85,5 @@ void DismissAppList() {
 void SetAppListProfile(const base::FilePath& profile_file_path) {
 }
 
-void NotifyAppListOfBeginExtensionInstall(
-    Profile* profile,
-    const std::string& extension_id,
-    const std::string& extension_name,
-    const gfx::ImageSkia& installing_icon) {
-}
-
-void NotifyAppListOfDownloadProgress(
-    Profile* profile,
-    const std::string& extension_id,
-    int percent_downloaded) {
-}
-
-void NotifyAppListOfExtensionInstallFailure(
-    Profile* profile,
-    const std::string& extension_id) {
-}
-
 }  // namespace chrome
 #endif