Add a Display and ContextProvider concept to mojom, use to recreate

services/native_viewport/viewport_surface.cc

 // Copyright 2014 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 "services/native_viewport/viewport_surface.h"
 
 #include "base/bind.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
 #include "mojo/converters/surfaces/surfaces_type_converters.h"
 #include "mojo/services/surfaces/public/cpp/surfaces_utils.h"
@@ skipping 39 matching lines @@
   if (widget_id_)
     BindSurfaceToNativeViewport();
 }
 
 void ViewportSurface::SetChildId(cc::SurfaceId child_id) {
   child_id_ = child_id;
   SubmitFrame();
 }
 
 void ViewportSurface::BindSurfaceToNativeViewport() {
+  /*
   mojo::ViewportParameterListenerPtr listener;
   auto listener_request = GetProxy(&listener);
   mojo::CommandBufferPtr command_buffer;
   gpu_service_->CreateOnscreenGLES2Context(widget_id_, Size::From(size_),
                                            GetProxy(&command_buffer),
                                            listener.Pass());
 
   gles2_bound_surface_created_ = true;
   surface_->CreateGLES2BoundSurface(command_buffer.Pass(),
                                     kGLES2BoundSurfaceLocalId,
                                     Size::From(size_), listener_request.Pass());
 
   SubmitFrame();
+  */
 }
 
 void ViewportSurface::SubmitFrame() {
   if (child_id_.is_null() || !gles2_bound_surface_created_)
     return;
 
   auto surface_quad_state = mojo::SurfaceQuadState::New();
   surface_quad_state->surface = SurfaceId::From(child_id_);
 
   gfx::Rect bounds(size_);
@@ skipping 14 matching lines @@
       *mojo::Size::From(size_)));
 
   auto frame = mojo::Frame::New();
   frame->passes.push_back(pass.Pass());
   frame->resources.resize(0u);
   surface_->SubmitFrame(kGLES2BoundSurfaceLocalId, frame.Pass(),
                         mojo::Closure());
 }
 
 }  // namespace native_viewport