Implement our own GLThread for VR Shell.

chrome/browser/android/vr_shell/vr_compositor.cc

 // Copyright 2016 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 "chrome/browser/android/vr_shell/vr_compositor.h"
 
 #include "cc/layers/layer.h"
 #include "content/public/browser/android/compositor.h"
 #include "content/public/browser/web_contents.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/android/window_android.h"
 
-using base::android::JavaParamRef;
-
 namespace vr_shell {
 
 VrCompositor::VrCompositor(ui::WindowAndroid* window, bool transparent)
     : background_color_(SK_ColorWHITE),
       transparent_(transparent) {
   compositor_.reset(content::Compositor::Create(this, window));
   compositor_->SetHasTransparentBackground(transparent);
 }
 
 VrCompositor::~VrCompositor() {
@@ skipping 28 matching lines @@
 }
 
 void VrCompositor::SurfaceDestroyed() {
   compositor_->SetSurface(nullptr);
 }
 
 void VrCompositor::SetWindowBounds(int width, int height) {
   compositor_->SetWindowBounds(gfx::Size(width, height));
 }
 
-void VrCompositor::SurfaceChanged(const JavaParamRef<jobject>& surface) {
+void VrCompositor::SurfaceChanged(jobject surface) {
   DCHECK(surface);
   compositor_->SetSurface(surface);
 }
 
 }  // namespace vr_shell