x11: Move X event handling out of the message-pump.

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 b3db4e9a5ce8c4d065182ae1d5d9f95074f7af0a..ebac2d2f03a6e73a6815a552ff24fc1d939d85c2 100644
--- a/ash/accelerators/nested_dispatcher_controller.h
+++ b/ash/accelerators/nested_dispatcher_controller.h
@@ -12,6 +12,8 @@
 
 namespace ash {
 
+class AcceleratorDispatcher;
+
 // Creates a dispatcher which wraps another dispatcher.
 // The outer dispatcher runs first and performs ash specific handling.
 // If it does not consume the event it forwards the event to the nested
@@ -29,6 +31,7 @@ class ASH_EXPORT NestedDispatcherController
 
  private:
   base::Closure quit_closure_;
+  scoped_ptr<AcceleratorDispatcher> accelerator_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(NestedDispatcherController);
 };