cc: Heuristic for Renderer latency recovery

cc/test/scheduler_test_common.cc

Index: cc/test/scheduler_test_common.cc
diff --git a/cc/test/scheduler_test_common.cc b/cc/test/scheduler_test_common.cc
index 91d0952922aab2ded73b50dcc3f958d3271ac66f..294b9517435504b6bfa56811cda3443ee2d5578d 100644
--- a/cc/test/scheduler_test_common.cc
+++ b/cc/test/scheduler_test_common.cc
@@ -83,6 +83,14 @@ FakeCompositorTimingHistory::FakeCompositorTimingHistory(
 FakeCompositorTimingHistory::~FakeCompositorTimingHistory() {
 }
 
+void FakeCompositorTimingHistory::SetAllEstimatesTo(base::TimeDelta duration) {
+  begin_main_frame_to_commit_duration_ = duration;
+  commit_to_ready_to_activate_duration_ = duration;
+  prepare_tiles_duration_ = duration;
+  activate_duration_ = duration;
+  draw_duration_ = duration;
+}
+
 void FakeCompositorTimingHistory::SetBeginMainFrameToCommitDurationEstimate(
     base::TimeDelta duration) {
   begin_main_frame_to_commit_duration_ = duration;
@@ -170,13 +178,19 @@ TestScheduler::TestScheduler(
                 synthetic_frame_source.Pass(),
                 unthrottled_frame_source.Pass(),
                 compositor_timing_history.Pass()),
-      now_src_(now_src) {
+      now_src_(now_src),
+      was_swap_throttled_at_last_begin_frame_(false) {
 }
 
 base::TimeTicks TestScheduler::Now() const {
   return now_src_->NowTicks();
 }
 
+void TestScheduler::BeginImplFrameWithDeadline(const BeginFrameArgs& args) {
+  was_swap_throttled_at_last_begin_frame_ = state_machine_.SwapThrottled();
+  Scheduler::BeginImplFrameWithDeadline(args);
+}
+
 TestScheduler::~TestScheduler() {
 }