Hook up ui::Compositor to Display's BeginFrameSource

cc/surfaces/display_scheduler_unittest.cc

Index: cc/surfaces/display_scheduler_unittest.cc
diff --git a/cc/surfaces/display_scheduler_unittest.cc b/cc/surfaces/display_scheduler_unittest.cc
index 18e630314f24666c7842b8f73a0c588f08cac1d4..ab6d17dc82277da0f142803fb742d6ccb26ededb 100644
--- a/cc/surfaces/display_scheduler_unittest.cc
+++ b/cc/surfaces/display_scheduler_unittest.cc
@@ -28,6 +28,7 @@ class FakeDisplaySchedulerClient : public DisplaySchedulerClient {
     draw_and_swap_count_++;
     return true;
   }
+  void UpdateSchedulerBeginFrameSource(BeginFrameSource* source) override {}
 
   void Reset() { draw_and_swap_count_ = 0; }
 
@@ -42,11 +43,13 @@ class TestDisplayScheduler : public DisplayScheduler {
   TestDisplayScheduler(DisplaySchedulerClient* client,
                        BeginFrameSource* begin_frame_source,
                        base::SingleThreadTaskRunner* task_runner,
-                       int max_pending_swaps)
+                       int max_pending_swaps,
+                       const RendererSettings& settings)
       : DisplayScheduler(client,
                          begin_frame_source,
                          task_runner,
-                         max_pending_swaps),
+                         max_pending_swaps,
+                         settings),
         scheduler_begin_frame_deadline_count_(0) {}
 
   base::TimeTicks DesiredBeginFrameDeadlineTimeForTest() {
@@ -77,7 +80,8 @@ class DisplaySchedulerTest : public testing::Test {
         scheduler_(new TestDisplayScheduler(client_.get(),
                                             &fake_begin_frame_source_,
                                             task_runner_.get(),
-                                            kMaxPendingSwaps)) {
+                                            kMaxPendingSwaps,
+                                            settings_)) {
     now_src_->Advance(base::TimeDelta::FromMicroseconds(10000));
   }
 
@@ -100,6 +104,7 @@ class DisplaySchedulerTest : public testing::Test {
   DisplayScheduler& scheduler() { return *scheduler_; }
 
   FakeBeginFrameSource fake_begin_frame_source_;
+  RendererSettings settings_;
 
   scoped_ptr<base::SimpleTestTickClock> now_src_;
   scoped_refptr<base::NullTaskRunner> task_runner_;