Add create WGC3DInProcessCommandBuffer for on-screen context

webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h

Index: webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h
diff --git a/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h b/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h
index 22cd3b373aa46faedaef39876edc23a071f48685..0d5c177f7ad20fd517d04ff90b2d478aea7a10c9 100644
--- a/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h
+++ b/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h
@@ -45,9 +45,15 @@ class GLInProcessContext;
 class WEBKIT_GPU_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
     : public NON_EXPORTED_BASE(WebKit::WebGraphicsContext3D) {
  public:
+  static WebGraphicsContext3DInProcessCommandBufferImpl*
+      CreateViewContext(
+          const WebKit::WebGraphicsContext3D::Attributes& attributes,
+          gfx::AcceleratedWidget window);
+
+  static WebGraphicsContext3DInProcessCommandBufferImpl*
+      CreateOffscreenContext(
+          const WebKit::WebGraphicsContext3D::Attributes& attributes);
 
-  explicit WebGraphicsContext3DInProcessCommandBufferImpl(
-      const WebKit::WebGraphicsContext3D::Attributes& attributes);
   virtual ~WebGraphicsContext3DInProcessCommandBufferImpl();
 
   //----------------------------------------------------------------------
@@ -526,6 +532,11 @@ class WEBKIT_GPU_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
   virtual GrGLInterface* onCreateGrGLInterface();
 
  private:
+  WebGraphicsContext3DInProcessCommandBufferImpl(
+      const WebKit::WebGraphicsContext3D::Attributes& attributes,
+      bool is_offscreen,
+      gfx::AcceleratedWidget window);
+
   // SwapBuffers callback.
   void OnSwapBuffersComplete();
   virtual void OnContextLost();
@@ -536,6 +547,11 @@ class WEBKIT_GPU_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
   // instead of going through WebGraphicsContext3D.
   void ClearContext();
 
+
+  bool is_offscreen_;
+  // Only used when not offscreen.
+  gfx::AcceleratedWidget window_;
+
   bool initialized_;
   bool initialize_failed_;