glx: forward Expose event from child window to parent

ui/gl/gl_surface_glx.h

 // Copyright (c) 2012 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_GL_GL_SURFACE_GLX_H_
 #define UI_GL_GL_SURFACE_GLX_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
+#include "ui/events/platform/platform_event_dispatcher.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/vsync_provider.h"
 #include "ui/gfx/x/x11_types.h"
 #include "ui/gl/gl_export.h"
 #include "ui/gl/gl_surface.h"
 
 namespace gfx {
 
 // Base class for GLX surfaces.
@@ skipping 20 matching lines @@
   virtual void* GetConfig() = 0;
 
  protected:
   virtual ~GLSurfaceGLX();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GLSurfaceGLX);
 };
 
 // A surface used to render to a view.
-class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
+class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX,
+                                         public ui::PlatformEventDispatcher {
  public:
   explicit NativeViewGLSurfaceGLX(gfx::AcceleratedWidget window);
 
   // Implement GLSurfaceGLX.
   virtual bool Initialize() OVERRIDE;
   virtual void Destroy() OVERRIDE;
   virtual bool Resize(const gfx::Size& size) OVERRIDE;
   virtual bool IsOffscreen() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
   virtual void* GetHandle() OVERRIDE;
   virtual bool SupportsPostSubBuffer() OVERRIDE;
   virtual void* GetConfig() OVERRIDE;
   virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
   virtual VSyncProvider* GetVSyncProvider() OVERRIDE;
 
  protected:
-  NativeViewGLSurfaceGLX();
   virtual ~NativeViewGLSurfaceGLX();
 
  private:
   // The handle for the drawable to make current or swap.
   gfx::AcceleratedWidget GetDrawableHandle() const;
 
+  // PlatformEventDispatcher implementation
+  virtual bool CanDispatchEvent(const ui::PlatformEvent& event) OVERRIDE;
+  virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) OVERRIDE;
+
   // Window passed in at creation. Always valid.
   gfx::AcceleratedWidget parent_window_;
 
   // Child window, used to control resizes so that they're in-order with GL.
   gfx::AcceleratedWidget window_;
 
   void* config_;
   gfx::Size size_;
 
   scoped_ptr<VSyncProvider> vsync_provider_;
@@ skipping 22 matching lines @@
   gfx::Size size_;
   void* config_;
   XID pbuffer_;
 
   DISALLOW_COPY_AND_ASSIGN(PbufferGLSurfaceGLX);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GL_GL_SURFACE_GLX_H_