cc: Adding creation location to debug BeginFrameArgs objects.

cc/scheduler/scheduler_unittest.cc

Index: cc/scheduler/scheduler_unittest.cc
diff --git a/cc/scheduler/scheduler_unittest.cc b/cc/scheduler/scheduler_unittest.cc
index 7d61df36d3cc8692c7f9af50a27963a2e0e252ef..30f62aed76eb51ba6ea93fca9f68c4283861d6b8 100644
--- a/cc/scheduler/scheduler_unittest.cc
+++ b/cc/scheduler/scheduler_unittest.cc
@@ -171,7 +171,7 @@ class FakeSchedulerClient : public SchedulerClient {
       // last one otherwise we violate the BeginFrameSource contract.
       now_src_->AdvanceNowMicroseconds(1);
       fake_external_begin_frame_source_->TestOnBeginFrame(
-          CreateBeginFrameArgsForTesting(now_src_));
+          CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, now_src_));
       EXPECT_TRUE(scheduler_->BeginImplFrameDeadlinePending());
     }
 
@@ -1126,7 +1126,8 @@ TEST(SchedulerTest, PollForCommitCompletion) {
   scheduler->NotifyReadyToCommit();
   scheduler->SetNeedsRedraw();
 
-  BeginFrameArgs frame_args = CreateBeginFrameArgsForTesting(client.now_src());
+  BeginFrameArgs frame_args =
+      CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, client.now_src());
   frame_args.interval = base::TimeDelta::FromMilliseconds(1000);
   client.fake_external_begin_frame_source()->TestOnBeginFrame(frame_args);
 
@@ -1199,7 +1200,8 @@ TEST(SchedulerTest, BeginRetroFrame) {
 
   // Create a BeginFrame with a long deadline to avoid race conditions.
   // This is the first BeginFrame, which will be handled immediately.
-  BeginFrameArgs args = CreateBeginFrameArgsForTesting(client.now_src());
+  BeginFrameArgs args =
+      CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, client.now_src());
   args.deadline += base::TimeDelta::FromHours(1);
   client.fake_external_begin_frame_source()->TestOnBeginFrame(args);
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
@@ -1277,7 +1279,8 @@ TEST(SchedulerTest, BeginRetroFrame_SwapThrottled) {
 
   // Create a BeginFrame with a long deadline to avoid race conditions.
   // This is the first BeginFrame, which will be handled immediately.
-  BeginFrameArgs args = CreateBeginFrameArgsForTesting(client.now_src());
+  BeginFrameArgs args =
+      CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, client.now_src());
   args.deadline += base::TimeDelta::FromHours(1);
   client.fake_external_begin_frame_source()->TestOnBeginFrame(args);
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
@@ -1752,7 +1755,8 @@ TEST(SchedulerTest, DidLoseOutputSurfaceAfterBeginRetroFramePosted) {
   // Create a BeginFrame with a long deadline to avoid race conditions.
   // This is the first BeginFrame, which will be handled immediately.
   client.Reset();
-  BeginFrameArgs args = CreateBeginFrameArgsForTesting(client.now_src());
+  BeginFrameArgs args =
+      CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, client.now_src());
   args.deadline += base::TimeDelta::FromHours(1);
   client.fake_external_begin_frame_source()->TestOnBeginFrame(args);
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);
@@ -1811,7 +1815,8 @@ TEST(SchedulerTest, DidLoseOutputSurfaceDuringBeginRetroFrameRunning) {
   // Create a BeginFrame with a long deadline to avoid race conditions.
   // This is the first BeginFrame, which will be handled immediately.
   client.Reset();
-  BeginFrameArgs args = CreateBeginFrameArgsForTesting(client.now_src());
+  BeginFrameArgs args =
+      CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, client.now_src());
   args.deadline += base::TimeDelta::FromHours(1);
   client.fake_external_begin_frame_source()->TestOnBeginFrame(args);
   EXPECT_ACTION("WillBeginImplFrame", client, 0, 2);