cc: Making BeginFrameSources support multiple BeginFrameObservers.

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 f25d6eb142452e8daf05ba9af45efe72d3bdd588..519710130b633e0d93e17b09f57c2c8643c992c7 100644
--- a/cc/test/scheduler_test_common.cc
+++ b/cc/test/scheduler_test_common.cc
@@ -37,8 +37,7 @@ TestDelayBasedTimeSource::~TestDelayBasedTimeSource() {
 void FakeBeginFrameSource::DidFinishFrame(size_t remaining_frames) {
   remaining_frames_ = remaining_frames;
 }
-void FakeBeginFrameSource::AsValueInto(
-    base::trace_event::TracedValue* dict) const {
+void FakeBeginFrameSource::AsValueInto(base::trace_event::TracedValue* dict) {
   dict->SetString("type", "FakeBeginFrameSource");
   BeginFrameSourceMixIn::AsValueInto(dict);
 }