wm: Change the DispatcherClient interface.

ash/accelerators/nested_dispatcher_controller.h

Index: ash/accelerators/nested_dispatcher_controller.h
diff --git a/ash/accelerators/nested_dispatcher_controller.h b/ash/accelerators/nested_dispatcher_controller.h
index ebac2d2f03a6e73a6815a552ff24fc1d939d85c2..e9350f375dde641ef01ea914dd6e1a2e64948291 100644
--- a/ash/accelerators/nested_dispatcher_controller.h
+++ b/ash/accelerators/nested_dispatcher_controller.h
@@ -26,11 +26,12 @@ class ASH_EXPORT NestedDispatcherController
 
   // aura::client::DispatcherClient:
   virtual void RunWithDispatcher(
-      base::MessagePumpDispatcher* dispatcher) OVERRIDE;
-  virtual void QuitNestedMessageLoop() OVERRIDE;
+      base::MessagePumpDispatcher* dispatcher,
+      base::Closure* quit_closure) OVERRIDE;
 
  private:
-  base::Closure quit_closure_;
+  void QuitNestedMessageLoop(const base::Closure& quit_runloop);
+
   scoped_ptr<AcceleratorDispatcher> accelerator_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(NestedDispatcherController);