InProcessGL: Share MailboxManager per service

content/browser/android/in_process/synchronous_compositor_impl.cc

Index: content/browser/android/in_process/synchronous_compositor_impl.cc
diff --git a/content/browser/android/in_process/synchronous_compositor_impl.cc b/content/browser/android/in_process/synchronous_compositor_impl.cc
index 6fe045a9c97668cb5c0dafce7d3394526fca32e9..66ce2cc14d47618013631c7fa60ead9adc8e7265 100644
--- a/content/browser/android/in_process/synchronous_compositor_impl.cc
+++ b/content/browser/android/in_process/synchronous_compositor_impl.cc
@@ -115,11 +115,6 @@ void SynchronousCompositorImpl::ReleaseHwDraw() {
   g_factory.Get().CompositorReleasedHardwareDraw();
 }
 
-gpu::GLInProcessContext* SynchronousCompositorImpl::GetShareContext() {
-  DCHECK(CalledOnValidThread());
-  return g_factory.Get().GetShareContext();
-}
-
 scoped_ptr<cc::CompositorFrame> SynchronousCompositorImpl::DemandDrawHw(
     gfx::Size surface_size,
     const gfx::Transform& transform,