Chrome Version: 57.0.2957.0
OS: Linux (locally built content_shell with dchecks enabled)

What steps will reproduce the problem?
(1) Build content_shell with dchecks enabled
(2) Run: ./content_shell --no-sandbox  https://www.youtube.com/tv#/watch/ads/control?v=7E4GsPnGQrg  --trace-startup='cc,disabled-by-default-cc.debug' --trace-startup-duration=30
(3)

What is the expected result?
Starts normally and collects trace results

What happens instead?
This dcheck triggers before the video starts playing:
FATAL:animation_player.cc(852)] Check failed: HasTransformAnimationThatInflatesBounds(). TransformAnimationBoundsForBox will give incorrect results if there are no transform animations affecting bounds, non-animated transform is not known

See complete stacktrace at the end of the issue description.

Please use labels and text to provide additional information.
It does not happen if I remove  the "disabled-by-default-cc.debug" category from the tracing so, not sure if this code is executed in other circumstances than that specific tracing category.

Stacktrace:
[9460:9464:1219/094720.393448:1628701874188:FATAL:animation_player.cc(852)] Check failed: HasTransformAnimationThatInflatesBounds(). TransformAnimationBoundsForBox will give incorrect results if there are no transform animations affecting bounds, non-animated transform is not known
#0 0x000001891e2e base::debug::StackTrace::StackTrace()
#1 0x0000018a509b logging::LogMessage::~LogMessage()
#2 0x000002697a7d cc::AnimationPlayer::TransformAnimationBoundsForBox()
#3 0x00000269b9b7 cc::ElementAnimations::TransformAnimationBoundsForBox()
#4 0x000002692c16 cc::AnimationHost::TransformAnimationBoundsForBox()
#5 0x0000023d74d8 cc::LayerUtils::GetAnimationBounds()
#6 0x0000023d60c5 cc::LayerImpl::AsValueInto()
#7 0x00000243b02d cc::PictureLayerImpl::AsValueInto()
#8 0x00000240c0ba cc::LayerTreeImpl::AsValueInto()
#9 0x000002460bc0 cc::LayerTreeHostImpl::AsValueWithFrameInto()
#10 0x00000245aad2 cc::LayerTreeHostImpl::DrawLayers()
#11 0x000004891c44 cc::ProxyImpl::DrawInternal()
#12 0x000004891988 cc::ProxyImpl::ScheduledActionDrawIfPossible()
#13 0x0000048888a9 cc::Scheduler::ProcessScheduledActions()
#14 0x00000488850e cc::Scheduler::OnBeginImplFrameDeadline()
#15 0x0000004c54da _ZN4base8internal13FunctorTraitsIMN7content21EmbeddedServiceRunnerEFvvEvE6InvokeIRKNS_7WeakPtrIS3_EEJEEEvS5_OT_DpOT0_
#16 0x00000064ef83 base::CancelableCallback<>::Forward()
#17 0x0000004c54da _ZN4base8internal13FunctorTraitsIMN7content21EmbeddedServiceRunnerEFvvEvE6InvokeIRKNS_7WeakPtrIS3_EEJEEEvS5_OT_DpOT0_
#18 0x00000192b76e base::debug::TaskAnnotator::RunTask()
#19 0x0000018abe4d base::MessageLoop::RunTask()
#20 0x0000018ac516 base::MessageLoop::DoWork()
#21 0x0000018adf29 base::MessagePumpDefault::Run()
#22 0x0000018abba5 base::MessageLoop::RunHandler()
#23 0x0000018cd40c base::RunLoop::Run()
#24 0x0000018f32cc base::Thread::Run()
#25 0x0000018f37c8 base::Thread::ThreadMain()
#26 0x0000018ecbbc base::(anonymous namespace)::ThreadFunc()
#27 0x7f2390b6f6ba start_thread
#28 0x7f238b98482d clone