Version: M54 Canary 54.0.2811.0
OS: Mac 10.11.6

What steps will reproduce the problem?
(1) Open https://webrtc.github.io/samples/src/content/getusermedia/filter/
(2) With no filter selected, click 'Take snapshot' 
(3) Scroll up and down the page and observe how the snapshot image looks like while scrolling
(4) Now, select a filter from the dropdown, and click 'Take snapshot'
(5) Scroll up and down the page and observe how the snapshot image appears while scrolling

What is the expected output?
the canvas element of the local gUM video should not shrink/resize on scrolling

What do you see instead?
the canvas element of local gUM video stream shrinks/appears to fold in/out on scrolling up/down
Attached screenshot and video grab


Please use labels and text to provide additional information.
This appears to be a regression from yesterday's canary 54.0.2810.2, I'm not sure what CL could cause this, from the bisect info below. 
Also, not sure it this really a bug, or its expected

You are probably looking for a change made after 408308 (known good), but no later than 408311 (first known bad).
CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/fb38d1a9e18839900fef488e3c711833c9fe5279..dd05854bb54363ce7d57ad1bedfe8df33ad76191

 

Deleted: Screen Shot 2016-07-29 at 9.37.19 AM.png 273 KB

	Screen Shot 2016-07-29 at 9.37.19 AM.png 273 KB View Download

Version: M54 Canary 54.0.2811.0
OS: Mac 10.11.6

What steps will reproduce the problem?
(1) Open https://webrtc.github.io/samples/src/content/getusermedia/filter/
(2) With no filter selected, click 'Take snapshot' 
(3) Scroll up and down the page and observe how the snapshot image looks like while scrolling
(4) Now, select a filter from the dropdown, and click 'Take snapshot'
(5) Scroll up and down the page and observe how the snapshot image appears while scrolling

What is the expected output?
the canvas element of the local gUM video should not shrink/resize on scrolling

What do you see instead?
the canvas element of local gUM video stream shrinks/appears to fold in/out on scrolling up/down
Attached screenshot
video grab - https://x20.corp.google.com/users/sr/srnarayanan/www/no_crawl/crbug632844


Please use labels and text to provide additional information.
This appears to be a regression from yesterday's canary 54.0.2810.2, I'm not sure what CL could cause this, from the bisect info below. 
Also, not sure it this really a bug, or its expected

You are probably looking for a change made after 408308 (known good), but no later than 408311 (first known bad).
CHANGELOG URL:
  https://chromium.googlesource.com/chromium/src/+log/fb38d1a9e18839900fef488e3c711833c9fe5279..dd05854bb54363ce7d57ad1bedfe8df33ad76191

 

Deleted: Screen Shot 2016-07-29 at 9.37.19 AM.png 273 KB

	Screen Shot 2016-07-29 at 9.37.19 AM.png 273 KB View Download