Remove PerBrowser launcher

chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app.cc

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app.cc
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app.cc b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app.cc
index 3137581a8ca5aba5c2b41e2a2de9ce09bbfdfe7d..9214b7f9892426e1243ec129396b27778a25baf6 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app.cc
@@ -297,21 +297,6 @@ void ChromeLauncherControllerPerApp::Init() {
   }
 }
 
-ChromeLauncherControllerPerApp*
-ChromeLauncherControllerPerApp::GetPerAppInterface() {
-  return this;
-}
-
-ash::LauncherID ChromeLauncherControllerPerApp::CreateTabbedLauncherItem(
-    LauncherItemController* controller,
-    IncognitoState is_incognito,
-    ash::LauncherItemStatus status) {
-  // The PerAppLauncher doesn't need an empty slot for TabbedLauncherItem and
-  // its LauncherItemController.
-  // TODO(skuhne): Remove function when PerBrowser launcher gets removed.
-  return 0;
-}
-
 ash::LauncherID ChromeLauncherControllerPerApp::CreateAppLauncherItem(
     LauncherItemController* controller,
     const std::string& app_id,