Add option to use GLContextVirtual in WGC3DIPCBI

webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.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 WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
 #define WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
 
 #if defined(ENABLE_GPU)
 
 #include <vector>
@@ skipping 27 matching lines @@
 using WebKit::WGC3Dsizeiptr;
 
 namespace webkit {
 namespace gpu {
 
 class GLInProcessContext;
 
 class WEBKIT_GPU_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
     : public NON_EXPORTED_BASE(WebKit::WebGraphicsContext3D) {
  public:
+  // Must be called before any WebGraphicsContext3DInProcessCommandBufferImpl
+  // instances are created. Default value is false.
+  static void EnableVirtualizedContext();
+
   static WebGraphicsContext3DInProcessCommandBufferImpl*
       CreateViewContext(
           const WebKit::WebGraphicsContext3D::Attributes& attributes,
           gfx::AcceleratedWidget window);
 
   static WebGraphicsContext3DInProcessCommandBufferImpl*
       CreateOffscreenContext(
           const WebKit::WebGraphicsContext3D::Attributes& attributes);
 
   virtual ~WebGraphicsContext3DInProcessCommandBufferImpl();
@@ skipping 523 matching lines @@
   void FlipVertically(uint8* framebuffer,
                       unsigned int width,
                       unsigned int height);
 };
 
 }  // namespace gpu
 }  // namespace webkit
 
 #endif  // defined(ENABLE_GPU)
 #endif  // WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_