cc: Remove OutputSurfaceClient::DidSwapBuffers().

cc/surfaces/display.cc

Index: cc/surfaces/display.cc
diff --git a/cc/surfaces/display.cc b/cc/surfaces/display.cc
index f45842d966972bfa7e29b02f09ced84c4e329b7e..1df8e9277d60e3e2bb3a07e35b0bbd492b55d1d2 100644
--- a/cc/surfaces/display.cc
+++ b/cc/surfaces/display.cc
@@ -322,6 +322,8 @@ bool Display::DrawAndSwap() {
     }
     benchmark_instrumentation::IssueDisplayRenderingStatsEvent();
     renderer_->SwapBuffers(std::move(frame.metadata));
+    if (scheduler_)
+      scheduler_->DidSwapBuffers();
   } else {
     if (have_damage && !size_matches)
       aggregator_->SetFullDamageForSurface(current_surface_id_);
@@ -329,18 +331,14 @@ bool Display::DrawAndSwap() {
     stored_latency_info_.insert(stored_latency_info_.end(),
                                 frame.metadata.latency_info.begin(),
                                 frame.metadata.latency_info.end());
-    DidSwapBuffers();
+    if (scheduler_)
+      scheduler_->DidSwapBuffers();
     DidSwapBuffersComplete();
   }
 
   return true;
 }
 
-void Display::DidSwapBuffers() {
-  if (scheduler_)
-    scheduler_->DidSwapBuffers();
-}
-
 void Display::DidSwapBuffersComplete() {
   if (scheduler_)
     scheduler_->DidSwapBuffersComplete();