UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Steps to reproduce the problem:
I really wish I could reproduce this at will but it is not a deterministic crash. It does occur fairly regularly (once every few days) and and I have been able to catch the exception with WinDBG

What is the expected behavior?
The tab doesn't crash.

What went wrong?
I have a "full minidump" of the crash as well if needed, it's ~600MB uncompressed though.

00 ntdll!RtlReportCriticalFailure+0x2f
01 ntdll!RtlpReportHeapFailure+0x26
02 ntdll!RtlpHeapHandleError+0x12
03 ntdll!RtlpLogHeapFailure+0xa4
04 ntdll!RtlFreeHeap+0x90
05 KERNEL32!HeapFree+0xa
06 chrome_child!free(void * ptr = 0xc708ac36`08de24b3)+0x38 [c:\b\build\slave\win64-pgo\build\src\base\allocator\allocator_shim.cc @ 244]
07 chrome_child!mkvmuxer::Frame::~Frame(void)+0x12 [c:\b\build\slave\win64-pgo\build\src\third_party\libwebm\source\mkvmuxer\mkvmuxer.cc @ 182]
08 chrome_child!mkvmuxer::Frame::`scalar deleting destructor'(void)+0xe
09 chrome_child!mkvmuxer::Segment::~Segment(void)+0xec [c:\b\build\slave\win64-pgo\build\src\third_party\libwebm\source\mkvmuxer\mkvmuxer.cc @ 2860]
0a chrome_child!media::WebmMuxer::~WebmMuxer(void)+0x57 [c:\b\build\slave\win64-pgo\build\src\media\muxers\webm_muxer.cc @ 125]
0b chrome_child!media::WebmMuxer::`scalar deleting destructor'(void)+0x14
0c chrome_child!content::MediaRecorderHandler::stop(void)+0x70 [c:\b\build\slave\win64-pgo\build\src\content\renderer\media\media_recorder_handler.cc @ 231]
0d chrome_child!blink::MediaRecorder::stopRecording(void)+0x22 [c:\b\build\slave\win64-pgo\build\src\third_party\webkit\source\modules\mediarecorder\mediarecorder.cpp @ 376]
0e chrome_child!blink::MediaRecorder::stop(class blink::ExceptionState * exceptionState = 0x00000000`0028b960)+0xf6 [c:\b\build\slave\win64-pgo\build\src\third_party\webkit\source\modules\mediarecorder\mediarecorder.cpp @ 241]
0f chrome_child!blink::MediaRecorderV8Internal::stopMethod(class v8::FunctionCallbackInfo<v8::Value> * info = <Value unavailable error>)+0x8a [c:\b\build\slave\win64-pgo\build\src\out\release_x64\gen\blink\bindings\modules\v8\v8mediarecorder.cpp @ 385]
10 chrome_child!v8::internal::FunctionCallbackArguments::Call(<function> * f = 0x000007fe`d214cd78, <Type information missing error> that = <Type information missing error>)+0xc4 [c:\b\build\slave\win64-pgo\build\src\v8\src\api-arguments.cc @ 20]
11 chrome_child!v8::internal::`anonymous namespace'::HandleApiCallHelper<0>(class v8::internal::Isolate * isolate = 0x00000000`003c3270, class v8::internal::Handle<v8::internal::HeapObject> function = class v8::internal::Handle<v8::internal::HeapObject>, class v8::internal::Handle<v8::internal::HeapObject> new_target = class v8::internal::Handle<v8::internal::HeapObject>, class v8::internal::Handle<v8::internal::FunctionTemplateInfo> fun_data = class v8::internal::Handle<v8::internal::FunctionTemplateInfo>, class v8::internal::Handle<v8::internal::Object> receiver = class v8::internal::Handle<v8::internal::Object>, class v8::internal::BuiltinArguments * args = 0x00000000`0028bc40)+0x11e [c:\b\build\slave\win64-pgo\build\src\v8\src\builtins\builtins-api.cc @ 108]
12 chrome_child!v8::internal::Builtin_Impl_HandleApiCall(class v8::internal::BuiltinArguments * args = 0x00000000`0028bcb0, class v8::internal::Isolate * isolate = 0x00000000`003c3270, int i = <Value unavailable error>)+0xcd [c:\b\build\slave\win64-pgo\build\src\v8\src\builtins\builtins-api.cc @ 135]
13 chrome_child!v8::internal::Builtin_HandleApiCall(int args_length = <Value unavailable error>, class v8::internal::Object ** args_object = <Value unavailable error>, class v8::internal::Isolate * isolate = 0x00000000`00000000)+0x32 [c:\b\build\slave\win64-pgo\build\src\v8\src\builtins\builtins-api.cc @ 123]
14 0x21`3cc843ab
15 0x115`13895209
16 0x4
17 0x21`3fa5fee1
18 0x28bca0
19 0x3`00000000
1a 0x21`3cc842e1
1b 0x21`3cc842e1
1c 0x28bcd0
1d 0x3`00000000

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 56.0.2924.87  Channel: stable
OS Version: 7
Flash Version: