See https://build.chromium.org/p/chromium.memory.fyi/builders/Windows%20Browser%20%28DrMemory%20full%29%20%285%29/builds/5380/steps/memory%20test%3A%20browser_tests_1/logs/stdio:

04:25:22 drmemory_analyze.py [INFO] Found 1 error reports
04:25:22 drmemory_analyze.py [INFO] Report #1
### BEGIN MEMORY TOOL REPORT (error hash=#F9184E469585BB2F#)
UNADDRESSABLE ACCESS beyond top of stack: executing 0xffffffff-0x00000000 1 byte(s)
# 0 <not in a module>                          (0xffffffff)
# 1 cc.dll!cc::Scheduler::BeginImplFrameWithDeadline         [cc\scheduler\scheduler.cc:440]
# 2 cc.dll!cc::Scheduler::OnBeginFrameDerivedImpl            [cc\scheduler\scheduler.cc:321]
# 3 cc.dll!cc::BeginFrameObserverBase::OnBeginFrame          [cc\scheduler\begin_frame_source.cc:43]
# 4 cc.dll!cc::SyntheticBeginFrameSource::OnTimerTick        [cc\scheduler\begin_frame_source.cc:231]
# 5 cc.dll!cc::DelayBasedTimeSource::OnTimerTick             [cc\scheduler\delay_based_time_source.cc:78]
# 6 cc.dll!base::internal::Invoker<>::Run                    [base\bind_internal.h:364]
# 7 cc.dll!base::CancelableCallback<>::Forward               [base\cancelable_callback.h:107]
# 8 base.dll!base::debug::TaskAnnotator::RunTask             [base\debug\task_annotator.cc:51]
# 9 base.dll!base::MessageLoop::RunTask                      [base\message_loop\message_loop.cc:475]
#10 base.dll!base::MessageLoop::DeferOrRunPendingTask        [base\message_loop\message_loop.cc:484]
#11 base.dll!base::MessageLoop::DoDelayedWork                [base\message_loop\message_loop.cc:639]
#12 base.dll!base::MessagePumpDefault::Run                   [base\message_loop\message_pump_default.cc:37]
#13 base.dll!base::MessageLoop::RunHandler                   [base\message_loop\message_loop.cc:439]
#14 base.dll!base::MessageLoop::Run                          [base\message_loop\message_loop.cc:294]
#15 base.dll!base::Thread::Run                               [base\threading\thread.cc:204]
#16 base.dll!base::Thread::ThreadMain                        [base\threading\thread.cc:256]
#17 base.dll!base::`anonymous namespace'::ThreadFunc         [base\threading\platform_thread_win.cc:84]
#18 KERNEL32.dll!BaseThreadInitThunk                        +0x11     (0x76a6337a <KERNEL32.dll+0x1337a>)
Note: @0:02:46.033 in thread 1964
The report came from the `InstanceIDApiTest.DeleteToken` test.
Suppression (error hash=#F9184E469585BB2F#):
  For more info on using suppressions see http://dev.chromium.org/developers/how-tos/using-drmemory#TOC-Suppressing-error-reports-from-the-
{
UNADDRESSABLE ACCESS
name=<insert_a_suppression_name_here>
<not in a module>
cc.dll!cc::Scheduler::BeginImplFrameWithDeadline
cc.dll!cc::Scheduler::OnBeginFrameDerivedImpl
cc.dll!cc::BeginFrameObserverBase::OnBeginFrame
cc.dll!cc::SyntheticBeginFrameSource::OnTimerTick
cc.dll!cc::DelayBasedTimeSource::OnTimerTick
cc.dll!base::internal::Invoker<>::Run
cc.dll!base::CancelableCallback<>::Forward
base.dll!base::debug::TaskAnnotator::RunTask
base.dll!base::MessageLoop::RunTask
base.dll!base::MessageLoop::DeferOrRunPendingTask
base.dll!base::MessageLoop::DoDelayedWork
base.dll!base::MessagePumpDefault::Run
base.dll!base::MessageLoop::RunHandler
base.dll!base::MessageLoop::Run
base.dll!base::Thread::Run
base.dll!base::Thread::ThreadMain
base.dll!base::`anonymous namespace'::ThreadFunc
KERNEL32.dll!BaseThreadInitThunk
}
### END MEMORY TOOL REPORT (error hash=#F9184E469585BB2F#)