Comment out asserts in WritableStream.js

Comment out asserts in WritableStream.js

assert() statements can have a major performance impact, so comment them out.

They have not been removed completely as they can be easily re-enabled for
debugging purposes, and are also useful as documentation.

BUG=709832
Review-Url: https://codereview.chromium.org/2818963002
Cr-Commit-Position: refs/heads/master@{#465538}
(cherry picked from commit 8ac2349b4fc1649f4fef0a69de517ad74acabc10)

Review-Url: https://codereview.chromium.org/2833033002 .
Cr-Commit-Position: refs/branch-heads/3071@{#116}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/f752fdbc7771c9fe61146f8f6c34c987f18430de

[Adam Rice, 2017-04-21 07:51:22]

Description was changed from

==========
Comment out asserts in WritableStream.js

assert() statements can have a major performance impact, so comment them out.

They have not been removed completely as they can be easily re-enabled for
debugging purposes, and are also useful as documentation.

BUG=709832

Review-Url: https://codereview.chromium.org/2818963002
Cr-Commit-Position: refs/heads/master@{#465538}
(cherry picked from commit 8ac2349b4fc1649f4fef0a69de517ad74acabc10)
==========

to

==========
Comment out asserts in WritableStream.js

assert() statements can have a major performance impact, so comment them out.

They have not been removed completely as they can be easily re-enabled for
debugging purposes, and are also useful as documentation.

BUG=709832

Review-Url: https://codereview.chromium.org/2818963002
Cr-Commit-Position: refs/heads/master@{#465538}
(cherry picked from commit 8ac2349b4fc1649f4fef0a69de517ad74acabc10)

Review-Url: https://codereview.chromium.org/2833033002 .
Cr-Commit-Position: refs/branch-heads/3071@{#116}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/f752fdbc7771c9fe61146f8f6c34...
==========

[Adam Rice, 2017-04-21 07:51:24]

Committed patchset #1 (id:1) manually as
f752fdbc7771c9fe61146f8f6c34c987f18430de.