Connect up --disable-gl-multisampling to command buffer

gpu/command_buffer/service/gpu_processor.h

Index: gpu/command_buffer/service/gpu_processor.h
diff --git a/gpu/command_buffer/service/gpu_processor.h b/gpu/command_buffer/service/gpu_processor.h
index b76b6e3220dbd6bc7e7b328e8927dcbc239cb56a..6816d161c63d96dd1be802fffb52e0d0f6898ae9 100644
--- a/gpu/command_buffer/service/gpu_processor.h
+++ b/gpu/command_buffer/service/gpu_processor.h
@@ -52,6 +52,7 @@ class GPUProcessor : public CommandBufferEngine {
   // Perform platform specific and common initialization.
   bool Initialize(gfx::PluginWindowHandle hwnd,
                   const gfx::Size& size,
+                  const gles2::DisallowedExtensions& disallowed_extensions,
                   const char* allowed_extensions,
                   const std::vector<int32>& attribs,
                   GPUProcessor* parent,
@@ -116,12 +117,14 @@ class GPUProcessor : public CommandBufferEngine {
 
  protected:
   // Perform common initialization. Takes ownership of GLContext.
-  bool InitializeCommon(gfx::GLContext* context,
-                        const gfx::Size& size,
-                        const char* allowed_extensions,
-                        const std::vector<int32>& attribs,
-                        gles2::GLES2Decoder* parent_decoder,
-                        uint32 parent_texture_id);
+  bool InitializeCommon(
+      gfx::GLContext* context,
+      const gfx::Size& size,
+      const gles2::DisallowedExtensions& disallowed_extensions,
+      const char* allowed_extensions,
+      const std::vector<int32>& attribs,
+      gles2::GLES2Decoder* parent_decoder,
+      uint32 parent_texture_id);
 
 
  private: