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..ad730c6d251a18ee88143aaf636b54c01bf4c60b 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
@@ -70,7 +70,8 @@ namespace chrome {
 
 // In the win_aura build these are defined in app_list_controller_win.cc.
 void ShowAppList(Profile* default_profile) {
-  ash::Shell::GetInstance()->ToggleAppList(NULL);
+  if (!ash::Shell::GetInstance()->GetAppListTargetVisibility())
+    ash::Shell::GetInstance()->ToggleAppList(NULL);
 }
 
 bool IsAppListVisible() {
@@ -85,23 +86,5 @@ 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