cc: Emulate BeginFrame in OutputSurfaces that don't support it natively

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 c1aa200caabca1fd8474cc277ff9672b38444ec4..8ccf47ec1610216793a1e07822ba446f11bd1af6 100644
--- a/cc/test/scheduler_test_common.cc
+++ b/cc/test/scheduler_test_common.cc
@@ -35,16 +35,6 @@ void FakeThread::PostDelayedTask(base::Closure cb, base::TimeDelta delay) {
 
 bool FakeThread::BelongsToCurrentThread() const { return true; }
 
-void FakeTimeSource::SetClient(TimeSourceClient* client) { client_ = client; }
-
-void FakeTimeSource::SetActive(bool b) { active_ = b; }
-
-bool FakeTimeSource::Active() const { return active_; }
-
-base::TimeTicks FakeTimeSource::LastTickTime() { return base::TimeTicks(); }
-
-base::TimeTicks FakeTimeSource::NextTickTime() { return base::TimeTicks(); }
-
 base::TimeTicks FakeDelayBasedTimeSource::Now() const { return now_; }
 
 }  // namespace cc