CC: Fix missing swap-used-incomplete-tile updates

cc/scheduler/scheduler_state_machine.cc

Index: cc/scheduler/scheduler_state_machine.cc
diff --git a/cc/scheduler/scheduler_state_machine.cc b/cc/scheduler/scheduler_state_machine.cc
index 704259beafd6ea9f86ea2d44c5fdc812236225d7..ea5c2faea1451bf6a3706ce35a187fe1dd99f4e4 100644
--- a/cc/scheduler/scheduler_state_machine.cc
+++ b/cc/scheduler/scheduler_state_machine.cc
@@ -454,15 +454,9 @@ void SchedulerStateMachine::UpdateState(Action action) {
     }
 
     case ACTION_DRAW_FORCED:
-    case ACTION_DRAW_IF_POSSIBLE: {
-      bool did_swap = true;
-      UpdateStateOnDraw(did_swap);
-      return;
-    }
-
+    case ACTION_DRAW_IF_POSSIBLE:
     case ACTION_DRAW_AND_SWAP_ABORT: {
-      bool did_swap = false;
-      UpdateStateOnDraw(did_swap);
+      UpdateStateOnDraw();
       return;
     }
 
@@ -542,7 +536,7 @@ void SchedulerStateMachine::UpdateStateOnActivation() {
   needs_redraw_ = true;
 }
 
-void SchedulerStateMachine::UpdateStateOnDraw(bool did_swap) {
+void SchedulerStateMachine::UpdateStateOnDraw() {
   if (inside_begin_frame_)
     last_frame_number_where_draw_was_called_ = current_frame_number_;
   if (commit_state_ == COMMIT_STATE_WAITING_FOR_FIRST_FORCED_DRAW) {
@@ -559,9 +553,6 @@ void SchedulerStateMachine::UpdateStateOnDraw(bool did_swap) {
   needs_forced_redraw_ = false;
   draw_if_possible_failed_ = false;
   active_tree_has_been_drawn_ = true;
-
-  if (did_swap)
-    swap_used_incomplete_tile_ = false;
 }
 
 void SchedulerStateMachine::SetMainThreadNeedsLayerTextures() {
@@ -614,8 +605,9 @@ void SchedulerStateMachine::SetVisible(bool visible) { visible_ = visible; }
 
 void SchedulerStateMachine::SetNeedsRedraw() { needs_redraw_ = true; }
 
-void SchedulerStateMachine::DidSwapUseIncompleteTile() {
-  swap_used_incomplete_tile_ = true;
+void SchedulerStateMachine::SetSwapUsedIncompleteTile(
+    bool used_incomplete_tile) {
+  swap_used_incomplete_tile_ = used_incomplete_tile;
 }
 
 void SchedulerStateMachine::SetNeedsForcedRedraw() {