gpu: Fix some context lost marking glitches+leaks and add UMA stats

content/browser/renderer_host/compositor_impl_android.cc

 // 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.
 
 #include "content/browser/renderer_host/compositor_impl_android.h"
 
 #include <android/bitmap.h>
 #include <android/native_window_jni.h>
 
 #include "base/android/jni_android.h"
@@ skipping 588 matching lines @@
   BrowserGpuChannelHostFactory* factory =
       BrowserGpuChannelHostFactory::instance();
   // This channel might be lost (and even if it isn't right now, it might
   // still get marked as lost from the IO thread, at any point in time really).
   // But from here on just try and always lead to either
   // DidInitializeOutputSurface() or DidFailToInitializeOutputSurface().
   scoped_refptr<GpuChannelHost> gpu_channel_host(factory->GetGpuChannel());
   scoped_refptr<ContextProviderCommandBuffer> context_provider(
       ContextProviderCommandBuffer::Create(
           CreateGpuProcessViewContext(gpu_channel_host, attrs, surface_id_),
-          "BrowserCompositor"));
+          BROWSER_COMPOSITOR_ONSCREEN_CONTEXT));
   DCHECK(context_provider.get());
 
   scoped_ptr<cc::OutputSurface> real_output_surface(
       new OutputSurfaceWithoutParent(context_provider,
                                      weak_factory_.GetWeakPtr()));
 
   cc::SurfaceManager* manager = GetSurfaceManager();
   if (manager) {
     display_client_.reset(new cc::OnscreenDisplayClient(
         real_output_surface.Pass(), manager, HostSharedBitmapManager::current(),
@@ skipping 103 matching lines @@
 
 void CompositorImpl::SetNeedsAnimate() {
   needs_animate_ = true;
   if (!host_)
     return;
 
   host_->SetNeedsAnimate();
 }
 
 }  // namespace content