Add GL_CHROMIUM_framebuffer_multisample support to Chromium's...

webkit/gpu/webgraphicscontext3d_in_process_impl.h

 // Copyright (c) 2010 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 WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_IMPL_H_
 #define WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_IMPL_H_
 
 #include <list>
 #include <set>
 
@@ skipping 57 matching lines @@
       unsigned format,
       unsigned type,
       unsigned access);
   virtual void unmapTexSubImage2DCHROMIUM(const void*);
   virtual void copyTextureToParentTextureCHROMIUM(
       unsigned texture, unsigned parentTexture);
 
   virtual WebKit::WebString getRequestableExtensionsCHROMIUM();
   virtual void requestExtensionCHROMIUM(const char*);
 
+  virtual void blitFramebufferCHROMIUM(
+      int srcX0, int srcY0, int srcX1, int srcY1,
+      int dstX0, int dstY0, int dstX1, int dstY1,
+      unsigned mask, unsigned filter);
+  virtual void renderbufferStorageMultisampleCHROMIUM(
+      unsigned long target, int samples, unsigned internalformat,
+      unsigned width, unsigned height);
+
   virtual void activeTexture(unsigned long texture);
   virtual void attachShader(WebKit::WebGLId program, WebKit::WebGLId shader);
   virtual void bindAttribLocation(
       WebKit::WebGLId program, unsigned long index, const char* name);
   virtual void bindBuffer(unsigned long target, WebKit::WebGLId buffer);
   virtual void bindFramebuffer(
       unsigned long target, WebKit::WebGLId framebuffer);
   virtual void bindRenderbuffer(
       unsigned long target, WebKit::WebGLId renderbuffer);
   virtual void bindTexture(unsigned long target, WebKit::WebGLId texture);
@@ skipping 376 matching lines @@
 
   ShHandle fragment_compiler_;
   ShHandle vertex_compiler_;
 };
 
 }  // namespace gpu
 }  // namespace webkit
 
 #endif  // WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_IMPL_H_