Add Mojo API for Blink hit testing

components/viz/host/host_frame_sink_manager.cc

Index: components/viz/host/host_frame_sink_manager.cc
diff --git a/components/viz/host/host_frame_sink_manager.cc b/components/viz/host/host_frame_sink_manager.cc
index aba1a37903ea0139bea3963379d7004a87eb4712..5d8dee8d5c9d94eaf42d5e0bf07faffc225b622e 100644
--- a/components/viz/host/host_frame_sink_manager.cc
+++ b/components/viz/host/host_frame_sink_manager.cc
@@ -11,6 +11,7 @@
 #include "components/viz/service/frame_sinks/compositor_frame_sink_support.h"
 #include "components/viz/service/frame_sinks/compositor_frame_sink_support_client.h"
 #include "components/viz/service/frame_sinks/frame_sink_manager_impl.h"
+#include "services/viz/public/interfaces/hit_test/target_frame_for_input_delegate.mojom.h"
 
 namespace viz {
 
@@ -113,6 +114,7 @@ void HostFrameSinkManager::UnregisterFrameSinkHierarchy(
 std::unique_ptr<CompositorFrameSinkSupport>
 HostFrameSinkManager::CreateCompositorFrameSinkSupport(
     CompositorFrameSinkSupportClient* client,
+    mojom::TargetFrameForInputDelegate* input_delegate,
     const FrameSinkId& frame_sink_id,
     bool is_root,
     bool handles_frame_sink_id_invalidation,
@@ -131,6 +133,7 @@ HostFrameSinkManager::CreateCompositorFrameSinkSupport(
 
   data.support = support.get();
   data.is_root = is_root;
+  data.target_frame_for_input_delegate = input_delegate;
 
   return support;
 }