Fix possible overlapping icons in shelf on sync.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
index 61a76aaa4b121608682bea2e502b59921b1f6dfe..8504e6457710719684f8bd61c6fedd0833c59ac6 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h
@@ -219,9 +219,8 @@ class ChromeLauncherControllerImpl
   void DoPinAppWithID(const std::string& app_id);
   void DoUnpinAppWithID(const std::string& app_id, bool update_prefs);
 
-  // Pin a running app with |shelf_id| internally to |index|. It returns
-  // the index where the item was pinned.
-  int PinRunningAppInternal(int index, ash::ShelfID shelf_id);
+  // Pin a running app with |shelf_id| internally to |index|.
+  void PinRunningAppInternal(int index, ash::ShelfID shelf_id);
 
   // Unpin a locked application. This is an internal call which converts the
   // model type of the given app index from a shortcut into an unpinned running