Added Pepper 3D render context that instantiates the GPU plugin....

webkit/glue/plugins/webplugin_3d_device_delegate.h

Index: webkit/glue/plugins/webplugin_3d_device_delegate.h
===================================================================
--- webkit/glue/plugins/webplugin_3d_device_delegate.h	(revision 35153)
+++ webkit/glue/plugins/webplugin_3d_device_delegate.h	(working copy)
@@ -46,6 +46,20 @@
   virtual NPError Device3DDestroyContext(NPDeviceContext3D* context) {
     return NPERR_GENERIC_ERROR;
   }
+  virtual NPError Device3DCreateBuffer(NPDeviceContext3D* context,
+                                       size_t size,
+                                       int32* id) {
+    return NPERR_GENERIC_ERROR;
+  }
+  virtual NPError Device3DDestroyBuffer(NPDeviceContext3D* context,
+                                        int32 id) {
+    return NPERR_GENERIC_ERROR;
+  }
+  virtual NPError Device3DMapBuffer(NPDeviceContext3D* context,
+                                    int32 id,
+                                    NPDeviceBuffer* buffer) {
+    return NPERR_GENERIC_ERROR;
+  }
 
  protected:
   WebPlugin3DDeviceDelegate() {}