Update the native_viewport interface to allow specification of the surface configuration, currently…

services/gles2/gpu_impl.cc

Index: services/gles2/gpu_impl.cc
diff --git a/services/gles2/gpu_impl.cc b/services/gles2/gpu_impl.cc
index 896bb18bb15609482078cbf6e72bab3b4ba23df7..9bdf8de48c330aeb2d00e839bde6273c4d509fa1 100644
--- a/services/gles2/gpu_impl.cc
+++ b/services/gles2/gpu_impl.cc
@@ -30,7 +30,8 @@ void GpuImpl::CreateOffscreenGLES2Context(
                         state_->sync_point_manager(),
                         make_scoped_ptr(new CommandBufferDriver(
                             state_->share_group(), state_->mailbox_manager(),
-                            state_->sync_point_manager())));
+                            state_->sync_point_manager(),
+                            gfx::SurfaceConfiguration())));
 }
 
 }  // namespace gles2