Fix gpu command buffer use after free by GrContext

gpu/blink/webgraphicscontext3d_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 GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_
 #define GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 914 matching lines @@
                             blink::WGC3Denum type,
                             blink::WGC3Dsizei stride,
                             blink::WGC3Dintptr pointer) override;
   void waitSync(blink::WGC3Dsync sync,
                 blink::WGC3Dbitfield flags,
                 blink::WGC3Duint64 timeout) override;
 
   bool isContextLost() override;
   blink::WGC3Denum getGraphicsResetStatusARB() override;
 
-  GrGLInterface* createGrGLInterface() override;
-
   ::gpu::gles2::GLES2Interface* GetGLInterface() {
     return gl_;
   }
 
   // Convert WebGL context creation attributes into command buffer / EGL size
   // requests.
   static void ConvertAttributes(
       const blink::WebGraphicsContext3D::Attributes& attributes,
       ::gpu::gles2::ContextCreationAttribHelper* output_attribs);
 
@@ skipping 24 matching lines @@
   std::vector<blink::WGC3Denum> synthetic_errors_;
 
   ::gpu::gles2::GLES2Interface* gl_;
   bool lose_context_when_out_of_memory_;
   uint32_t flush_id_;
 };
 
 }  // namespace gpu_blink
 
 #endif  // GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_