Add Satisfy() and Require() to MojoCompositorFrameSink

cc/surfaces/compositor_frame_sink_support.cc

Index: cc/surfaces/compositor_frame_sink_support.cc
diff --git a/cc/surfaces/compositor_frame_sink_support.cc b/cc/surfaces/compositor_frame_sink_support.cc
index c049ac7f3c0861e1d97485c851c83c2895ded975..d28ea4a2d4f536c041f515d37c2f613847f5d114 100644
--- a/cc/surfaces/compositor_frame_sink_support.cc
+++ b/cc/surfaces/compositor_frame_sink_support.cc
@@ -8,6 +8,7 @@
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/compositor_frame_sink_support_client.h"
 #include "cc/surfaces/display.h"
+#include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_manager.h"
 
 namespace cc {
@@ -83,6 +84,22 @@ void CompositorFrameSinkSupport::SubmitCompositorFrame(
   }
 }
 
+void CompositorFrameSinkSupport::Require(const LocalFrameId& local_frame_id,
+                                         const SurfaceSequence& sequence) {
+  Surface* surface = surface_manager_->GetSurfaceForId(
+      SurfaceId(frame_sink_id_, local_frame_id));
+  if (!surface) {
+    DLOG(ERROR) << "Attempting to require callback on nonexistent surface";
+    return;
+  }
+  surface->AddDestructionDependency(sequence);
+}
+
+void CompositorFrameSinkSupport::Satisfy(const SurfaceSequence& sequence) {
+  std::vector<uint32_t> sequences = {sequence.sequence};
+  surface_manager_->DidSatisfySequences(sequence.frame_sink_id, &sequences);
+}
+
 void CompositorFrameSinkSupport::DidReceiveCompositorFrameAck() {
   DCHECK_GT(ack_pending_count_, 0);
   ack_pending_count_--;