UserAgent: Mozilla/5.0 (X11; CrOS armv7l 10323.39.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.89 Safari/537.36
Platform: 10323.39.0 (Official Build) beta-channel veyron_minnie

Steps to reproduce the problem:
1. Use navigator.webkitGetUserMedia() to Create MediaStream Object(in javascript)
2. Use getVideoTracks() to get a video objcet(in javascript)
3.send video objcet in naclModule.postMessage to nacl module(in javascript)
4.receive video object in naclModule.HandleMessage from JS
(in nacl module)

What is the expected behavior?

What went wrong?
system memory usage increases in step4.

As a result:
nacl status will be "crashed"
application will be crach

Did this work before? No 

Chrome version: 65.0.3325.89  Channel: beta
OS Version: 10323.39.0
Flash Version: 28.0.0.161 /opt/google/chrome/pepper/libpepflashplayer.so

Attach the test application to reproduce this bug:

Steps:
1.load Extension from Chrome browser
2.Launch test application [MediaStream Video]
3.click the button of [Repeated Send Video By PostMsg]
in this step,system memory usage is increasing
4.repeat step3
application will be crash
 

Deleted: media_stream_video_MemoryLeakTest_HandleMsg.zip 1.1 MB

media_stream_video_MemoryLeakTest_HandleMsg.zip 1.1 MB Download