[mus+ash] Implements hit-test client in Aura

components/viz/client/client_layer_tree_frame_sink.h

Index: components/viz/client/client_layer_tree_frame_sink.h
diff --git a/components/viz/client/client_layer_tree_frame_sink.h b/components/viz/client/client_layer_tree_frame_sink.h
index 5a380bbbb41c2b950a38284a0166e56d0997c149..6d0f72d8ee7f4fc3d346ee65ad35d5aaa4267c42 100644
--- a/components/viz/client/client_layer_tree_frame_sink.h
+++ b/components/viz/client/client_layer_tree_frame_sink.h
@@ -15,8 +15,13 @@
 #include "cc/surfaces/surface_id.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
+namespace aura {
+class HitTestDataProviderMusTest;
+}
+
 namespace viz {
 
+class HitTestDataProvider;
 class LocalSurfaceIdProvider;
 
 class ClientLayerTreeFrameSink : public cc::LayerTreeFrameSink,
@@ -32,6 +37,7 @@ class ClientLayerTreeFrameSink : public cc::LayerTreeFrameSink,
           synthetic_begin_frame_source,
       cc::mojom::CompositorFrameSinkPtrInfo compositor_frame_sink_info,
       cc::mojom::CompositorFrameSinkClientRequest client_request,
+      std::unique_ptr<HitTestDataProvider> hit_test_data_provider,
       std::unique_ptr<LocalSurfaceIdProvider> local_surface_id_provider,
       bool enable_surface_synchronization);
 
@@ -41,6 +47,7 @@ class ClientLayerTreeFrameSink : public cc::LayerTreeFrameSink,
           synthetic_begin_frame_source,
       cc::mojom::CompositorFrameSinkPtrInfo compositor_frame_sink_info,
       cc::mojom::CompositorFrameSinkClientRequest client_request,
+      std::unique_ptr<HitTestDataProvider> hit_test_data_provider,
       std::unique_ptr<LocalSurfaceIdProvider> local_surface_id_provider,
       bool enable_surface_synchronization);
 
@@ -56,6 +63,8 @@ class ClientLayerTreeFrameSink : public cc::LayerTreeFrameSink,
   void DidNotProduceFrame(const cc::BeginFrameAck& ack) override;
 
  private:
+  friend class aura::HitTestDataProviderMusTest;
+
   // cc::mojom::CompositorFrameSinkClient implementation:
   void DidReceiveCompositorFrameAck(
       const std::vector<cc::ReturnedResource>& resources) override;
@@ -70,6 +79,7 @@ class ClientLayerTreeFrameSink : public cc::LayerTreeFrameSink,
                                     const std::string& description);
 
   cc::LocalSurfaceId local_surface_id_;
+  std::unique_ptr<HitTestDataProvider> hit_test_data_provider_;
   std::unique_ptr<LocalSurfaceIdProvider> local_surface_id_provider_;
   std::unique_ptr<cc::ExternalBeginFrameSource> begin_frame_source_;
   std::unique_ptr<cc::SyntheticBeginFrameSource> synthetic_begin_frame_source_;