Implement TextureImageTransportSurface using texture mailbox

content/common/gpu/image_transport_surface_android.cc

 // 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.
 
 #include "content/common/gpu/image_transport_surface.h"
 
 #include "base/logging.h"
 #include "content/common/gpu/gpu_surface_lookup.h"
 #include "content/common/gpu/texture_image_transport_surface.h"
 #include "ui/gl/gl_surface_egl.h"
 
 // static
 scoped_refptr<gfx::GLSurface> ImageTransportSurface::CreateSurface(
     GpuChannelManager* manager,
     GpuCommandBufferStub* stub,
     const gfx::GLSurfaceHandle& handle) {
   scoped_refptr<gfx::GLSurface> surface;
   if (!handle.handle && handle.transport) {
-    DCHECK(handle.parent_client_id);
     surface = new TextureImageTransportSurface(manager, stub, handle);
   } else if (handle.handle == gfx::kDummyPluginWindow && !handle.transport) {
     DCHECK(GpuSurfaceLookup::GetInstance());
     ANativeWindow* window = GpuSurfaceLookup::GetInstance()->GetNativeWidget(
         stub->surface_id());
     DCHECK(window);
     surface = new gfx::NativeViewGLSurfaceEGL(false, window);
     if (!surface.get() || !surface->Initialize())
       return NULL;
 
     surface = new PassThroughImageTransportSurface(
         manager, stub, surface.get(), handle.transport);
   } else {
     NOTIMPLEMENTED();
     return NULL;
   }
 
   if (surface->Initialize())
     return surface;
   else {
     LOG(ERROR) << "Failed to initialize ImageTransportSurface";
     return NULL;
   }
 }