WIP Hittest Component.

components/viz/frame_sinks/gpu_root_compositor_frame_sink.cc

Index: components/viz/frame_sinks/gpu_root_compositor_frame_sink.cc
diff --git a/components/viz/frame_sinks/gpu_root_compositor_frame_sink.cc b/components/viz/frame_sinks/gpu_root_compositor_frame_sink.cc
index 393f53fc2eb7d7d1b55226c84b1b895e1bfcf9d8..448a28d59a27bce5790b9572b55a83565c38bd93 100644
--- a/components/viz/frame_sinks/gpu_root_compositor_frame_sink.cc
+++ b/components/viz/frame_sinks/gpu_root_compositor_frame_sink.cc
@@ -114,7 +114,9 @@ void GpuRootCompositorFrameSink::DisplayOutputSurfaceLost() {
 
 void GpuRootCompositorFrameSink::DisplayWillDrawAndSwap(
     bool will_draw_and_swap,
-    const cc::RenderPassList& render_pass) {}
+    const cc::RenderPassList& render_pass) {
+  hittest_aggregator_.Aggregate(display_->CurrentSurfaceId());

[rjkroege, 2017/06/02 22:45:44]

am not sure that this is right?

[gklassen, 2017/06/05 21:32:13]

in what way?  Not sure the surface id should be used, or whether it will be the
correct value when invoked?

+}
 
 void GpuRootCompositorFrameSink::DisplayDidDrawAndSwap() {}