Implement our own GLThread for VR Shell.

gpu/ipc/common/gpu_surface_tracker.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_IPC_COMMON_GPU_SURFACE_TRACKER_H_
 #define GPU_IPC_COMMON_GPU_SURFACE_TRACKER_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 21 matching lines @@
 // This class is thread safe.
 class GPU_EXPORT GpuSurfaceTracker : public gpu::GpuSurfaceLookup {
  public:
   // GpuSurfaceLookup implementation:
   // Returns the native widget associated with a given surface_handle.
   // On Android, this adds a reference on the ANativeWindow.
   gfx::AcceleratedWidget AcquireNativeWidget(
       gpu::SurfaceHandle surface_handle) override;
 
 #if defined(OS_ANDROID)
-  void RegisterViewSurface(int surface_id,
-                           const base::android::JavaRef<jobject>& j_surface);
+  void RegisterViewSurface(int surface_id, jobject j_surface);
   void UnregisterViewSurface(int surface_id);
   gl::ScopedJavaSurface AcquireJavaSurface(int surface_id) override;
 #endif
 
   // Gets the global instance of the surface tracker.
   static GpuSurfaceTracker* Get() { return GetInstance(); }
 
   // Adds a surface for a native widget. Returns the surface ID.
   int AddSurfaceForNativeWidget(gfx::AcceleratedWidget widget);
 
@@ skipping 28 matching lines @@
   SurfaceViewMap surface_view_map_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(GpuSurfaceTracker);
 };
 
 }  // namespace ui
 
 #endif  // GPU_IPC_COMMON_GPU_SURFACE_TRACKER_H_