Add support for OutputSurface for Vulkan on Android.

content/browser/renderer_host/compositor_impl_android.h

Index: content/browser/renderer_host/compositor_impl_android.h
diff --git a/content/browser/renderer_host/compositor_impl_android.h b/content/browser/renderer_host/compositor_impl_android.h
index a578205914e71ca195619942b6cb5067b794ab32..2261631cdd42fe52946048f0836fbb4a2e1ecd42 100644
--- a/content/browser/renderer_host/compositor_impl_android.h
+++ b/content/browser/renderer_host/compositor_impl_android.h
@@ -34,6 +34,7 @@ class LayerTreeHost;
 class OnscreenDisplayClient;
 class SurfaceIdAllocator;
 class SurfaceManager;
+class VulkanInProcessContextProvider;
 }
 
 namespace content {
@@ -122,6 +123,9 @@ class CONTENT_EXPORT CompositorImpl
   void OnGpuChannelEstablished();
   void OnGpuChannelTimeout();
 
+  scoped_refptr<cc::VulkanInProcessContextProvider>
+  SharedVulkanContextProviderAndroid();
+
   // root_layer_ is the persistent internal root layer, while subroot_layer_
   // is the one attached by the compositor client.
   scoped_refptr<cc::Layer> root_layer_;
@@ -165,6 +169,10 @@ class CONTENT_EXPORT CompositorImpl
 
   gpu::Capabilities gpu_capabilities_;
   bool needs_begin_frames_;
+
+  scoped_refptr<cc::VulkanInProcessContextProvider>
+      shared_vulkan_context_provider_android_;
+
   base::WeakPtrFactory<CompositorImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);