blink: Adding the imageBufferDataCHROMIUM API for GpuMemoryBuffers

Source/Platform/chromium/public/WebGraphicsContext3D.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 480 matching lines @@
     virtual void asyncTexSubImage2DCHROMIUM(WGC3Denum target, WGC3Dint level, WGC3Dint xoffset, WGC3Dint yoffset, WGC3Dsizei width, WGC3Dsizei height, WGC3Denum format, WGC3Denum type, const void* pixels) { }
     virtual void waitAsyncTexImage2DCHROMIUM(WGC3Denum) { }
 
     // GL_EXT_draw_buffers
     virtual void drawBuffersEXT(WGC3Dsizei n, const WGC3Denum* bufs) { }
 
     // FIXME: Make implementations of this class override this method instead and then remove onCreateGrGLInterface().
     virtual GrGLInterface* createGrGLInterface() { return onCreateGrGLInterface(); }
 
     // GL_CHROMIUM_gpu_memory_buffer
-    virtual void imageBufferDataCHROMIUM(WGC3Denum target, WGC3Dsizei width, WGC3Dsizei height) { }
+    virtual WGC3Duint createImageCHROMIUM(WGC3Dsizei width, WGC3Dsizei height) { return 0; }
+    virtual void destroyImageCHROMIUM(WGC3Duint imageId) { }
+    virtual void getImageParameterivCHROMIUM(WGC3Duint imageId, WGC3Denum pname, WGC3Dint* params) { }
+    virtual void* mapImageCHROMIUM(WGC3Duint imageId, WGC3Denum access) { return 0; }
+    virtual WGC3Dboolean unmapImageCHROMIUM(WGC3Duint imageId) { return false; }
 
 protected:
     virtual GrGLInterface* onCreateGrGLInterface() { return 0; }
 
 };
 
 } // namespace WebKit
 
 #endif