Cleanup MenuRunner API

ui/views/controls/menu/menu_runner_impl_interface.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_INTERFACE_H_
 #define UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_INTERFACE_H_
 
 #include <stdint.h>
 
 #include "base/callback_forward.h"
@@ skipping 16 matching lines @@
       int32_t run_types,
       const base::Closure& on_menu_closed_callback);
 
   // Returns true if we're in a nested message loop running the menu.
   virtual bool IsRunning() const = 0;
 
   // See description above class for details.
   virtual void Release() = 0;
 
   // Runs the menu. See MenuRunner::RunMenuAt for more details.
-  virtual MenuRunner::RunResult RunMenuAt(Widget* parent,
-                                          MenuButton* button,
-                                          const gfx::Rect& bounds,
-                                          MenuAnchorPosition anchor,
-                                          int32_t run_types)
-      WARN_UNUSED_RESULT = 0;
+  virtual void RunMenuAt(Widget* parent,
+                         MenuButton* button,
+                         const gfx::Rect& bounds,
+                         MenuAnchorPosition anchor,
+                         int32_t run_types) = 0;
 
   // Hides and cancels the menu.
   virtual void Cancel() = 0;
 
   // Returns the time from the event which closed the menu - or 0.
   virtual base::TimeTicks GetClosingEventTime() const = 0;
 
  protected:
   // Call Release() to delete.
   virtual ~MenuRunnerImplInterface() {}
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_MENU_RUNNER_IMPL_INTERFACE_H_