Add Mojo API for Blink hit testing

components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h

Index: components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h
diff --git a/components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h b/components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h
index 91a4e805709b7d0328fe6b9254f3fce273a44443..2e8f552008621ae13104c32bfd21191bb4c88385 100644
--- a/components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h
+++ b/components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h
@@ -8,19 +8,23 @@
 #include <memory>
 
 #include "base/callback.h"
-
 namespace viz {
 
 class CompositorFrameSinkSupport;
 class CompositorFrameSinkSupportClient;
 class FrameSinkId;
 
+namespace mojom {
+class FrameInputHitTest;
+}
+
 // This inteface provides a way for DirectLayerTreeFrameSink to create a
 // CompositorFrameSinkSupport.
 class CompositorFrameSinkSupportManager {
  public:
   virtual std::unique_ptr<CompositorFrameSinkSupport>
   CreateCompositorFrameSinkSupport(CompositorFrameSinkSupportClient* client,
+                                   mojom::FrameInputHitTest*,
                                    const FrameSinkId& frame_sink_id,
                                    bool is_root,
                                    bool handles_frame_sink_id_invalidation,