Explicitly coerce PostDispatchAction to uint32_t in DispatchEvent()

ui/wm/core/nested_accelerator_dispatcher_linux.cc

 // 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.
 
 #include "ui/wm/core/nested_accelerator_dispatcher.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "ui/base/accelerators/accelerator.h"
 #include "ui/events/event.h"
@@ skipping 46 matching lines @@
   // AcceleratorDispatcher:
   virtual scoped_ptr<base::RunLoop> CreateRunLoop() override {
     return scoped_ptr<base::RunLoop>(new base::RunLoop());
   }
 
   // ui::PlatformEventDispatcher:
   virtual bool CanDispatchEvent(const ui::PlatformEvent& event) override {
     return true;
   }
 
-  virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) override {
+  virtual ui::PostDispatchAction DispatchEvent(
+      const ui::PlatformEvent& event) override {
     if (IsKeyEvent(event)) {
       ui::KeyEvent key_event(event);
       ui::Accelerator accelerator = CreateAcceleratorFromKeyEvent(key_event);
 
       switch (delegate_->ProcessAccelerator(accelerator)) {
         case NestedAcceleratorDelegate::RESULT_PROCESS_LATER:
 #if defined(USE_X11)
           XPutBackEvent(event->xany.display, event);
 #else
           NOTIMPLEMENTED();
 #endif
-          return ui::POST_DISPATCH_NONE;
+          return ui::kPostDispatchNone;
         case NestedAcceleratorDelegate::RESULT_PROCESSED:
-          return ui::POST_DISPATCH_NONE;
+          return ui::kPostDispatchNone;
         case NestedAcceleratorDelegate::RESULT_NOT_PROCESSED:
           break;
       }
     }
     ui::PlatformEventDispatcher* prev = *restore_dispatcher_;
 
-    return prev ? prev->DispatchEvent(event)
-                : ui::POST_DISPATCH_PERFORM_DEFAULT;
+    return prev ? prev->DispatchEvent(event) : ui::kPostDispatchPerformDefault;
   }
 
   scoped_ptr<ui::ScopedEventDispatcher> restore_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(NestedAcceleratorDispatcherLinux);
 };
 
 scoped_ptr<NestedAcceleratorDispatcher> NestedAcceleratorDispatcher::Create(
     NestedAcceleratorDelegate* delegate,
     base::MessagePumpDispatcher* nested_dispatcher) {
   return scoped_ptr<NestedAcceleratorDispatcher>(
       new NestedAcceleratorDispatcherLinux(delegate));
 }
 
 }  // namespace wm