Revert of DevTools: fix mixed arguments in Tracing.bufferUsage event

Revert of DevTools: fix mixed arguments in Tracing.bufferUsage event (patchset #1 id:1 of https://codereview.chromium.org/2752083002/ )

Reason for revert:
Speculative, looks like this broke a bunch of devtool tests on msan, first failure at https://build.chromium.org/p/chromium.memory.full/builders/Linux%20MSan%20Tests/builds/6404 but still broken 80 builds later.

Original issue's description:
> DevTools: fix mixed arguments in Tracing.bufferUsage event
> 
> Originally regressed by https://codereview.chromium.org/2500093002
> 
> BUG=b/36176396
> 
> Review-Url: https://codereview.chromium.org/2752083002
> Cr-Commit-Position: refs/heads/master@{#457227}
> Committed: https://chromium.googlesource.com/chromium/src/+/c8dc5d159a4716659d8698b093794f7c9eaa24ed

TBR=dgozman@chromium.org,caseq@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=b/36176396

Review-Url: https://codereview.chromium.org/2776043002
Cr-Commit-Position: refs/heads/master@{#459668}
Committed: https://chromium.googlesource.com/chromium/src/+/e14291f0adaf71cd42ef1c1a9d70ace4e309a1ba

[Nico, 2017-03-26 01:31:08]

The CQ bit was checked by thakis@chromium.org

[Nico, 2017-03-26 01:31:08]

Created Revert of DevTools: fix mixed arguments in Tracing.bufferUsage event

[commit-bot: I haz the power, 2017-03-26 01:31:21]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-26 03:11:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490491868529220, "parent_rev":
"42366da1ac6b2186e0569751941fd1a5a995801c", "commit_rev":
"e14291f0adaf71cd42ef1c1a9d70ace4e309a1ba"}

[commit-bot: I haz the power, 2017-03-26 03:12:46]

Description was changed from

==========
Revert of DevTools: fix mixed arguments in Tracing.bufferUsage event (patchset
#1 id:1 of https://codereview.chromium.org/2752083002/ )

Reason for revert:
Speculative, looks like this broke a bunch of devtool tests on msan, first
failure at
https://build.chromium.org/p/chromium.memory.full/builders/Linux%20MSan%20Tes...
but still broken 80 builds later.

Original issue's description:
> DevTools: fix mixed arguments in Tracing.bufferUsage event
> 
> Originally regressed by https://codereview.chromium.org/2500093002
> 
> BUG=b/36176396
> 
> Review-Url: https://codereview.chromium.org/2752083002
> Cr-Commit-Position: refs/heads/master@{#457227}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c8dc5d159a4716659d8698b09379...

TBR=dgozman@chromium.org,caseq@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=b/36176396
==========

to

==========
Revert of DevTools: fix mixed arguments in Tracing.bufferUsage event (patchset
#1 id:1 of https://codereview.chromium.org/2752083002/ )

Reason for revert:
Speculative, looks like this broke a bunch of devtool tests on msan, first
failure at
https://build.chromium.org/p/chromium.memory.full/builders/Linux%20MSan%20Tes...
but still broken 80 builds later.

Original issue's description:
> DevTools: fix mixed arguments in Tracing.bufferUsage event
> 
> Originally regressed by https://codereview.chromium.org/2500093002
> 
> BUG=b/36176396
> 
> Review-Url: https://codereview.chromium.org/2752083002
> Cr-Commit-Position: refs/heads/master@{#457227}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c8dc5d159a4716659d8698b09379...

TBR=dgozman@chromium.org,caseq@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=b/36176396

Review-Url: https://codereview.chromium.org/2776043002
Cr-Commit-Position: refs/heads/master@{#459668}
Committed:
https://chromium.googlesource.com/chromium/src/+/e14291f0adaf71cd42ef1c1a9d70...
==========

[commit-bot: I haz the power, 2017-03-26 03:12:47]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/e14291f0adaf71cd42ef1c1a9d70...

[caseq, 2017-03-26 23:08:22]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2763413011/ by caseq@chromium.org.

The reason for reverting is: Re-land, see comments in
https://codereview.chromium.org/2752083002 for details.
BUG=705306.