Chrome Version: (approximately ToT)
Chromium	72.0.3625.0 (Developer Build) (64-bit)
Revision	1bcdee9ce968577c851bd4459fff3cad94b7097a-refs/heads/master@{#611959}

OS: macOS 10.14.1
MacBook Pro (15-inch, 2017)

Some cleanups were found during the investigation of  Issue 911918  and the associated fix https://chromium-review.googlesource.com/1366923 :

1) ClearDepth was being set incorrectly in one part of the command decoder - unlikely to affect any real-world app though.

2) A texture was being persistently left bound to the GL_TEXTURE_RECTANGLE_ARB binding point of the current active texture unit during WebGL's DrawingBuffer operations. This is not a significant problem but should be cleaned up.