Remove unused ExceptionStatePlaceholder.cpp

Remove unused ExceptionStatePlaceholder.cpp

BUG=661774
Review-Url: https://codereview.chromium.org/2775093002
Cr-Commit-Position: refs/heads/master@{#459669}
Committed: https://chromium.googlesource.com/chromium/src/+/c6f53dc00d26c67ce3e8d9571996a0c7666b0288

[Nico, 2017-03-26 02:30:57]

The CQ bit was checked by thakis@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-03-26 02:31:02]

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

[Nico, 2017-03-26 02:31:30]

thakis@chromium.org changed reviewers:
+ haraken@chromium.org

[haraken, 2017-03-26 03:21:05]

LGTM

[Nico, 2017-03-26 03:22:53]

The CQ bit was unchecked by thakis@chromium.org

[Nico, 2017-03-26 03:22:54]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2017-03-26 03:23:06]

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 03:29:32]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490498574164160, "parent_rev":
"e14291f0adaf71cd42ef1c1a9d70ace4e309a1ba", "commit_rev":
"c6f53dc00d26c67ce3e8d9571996a0c7666b0288"}

[commit-bot: I haz the power, 2017-03-26 03:30:18]

Description was changed from

==========
Remove unused ExceptionStatePlaceholder.cpp

BUG=661774
==========

to

==========
Remove unused ExceptionStatePlaceholder.cpp

BUG=661774

Review-Url: https://codereview.chromium.org/2775093002
Cr-Commit-Position: refs/heads/master@{#459669}
Committed:
https://chromium.googlesource.com/chromium/src/+/c6f53dc00d26c67ce3e8d9571996...
==========

[commit-bot: I haz the power, 2017-03-26 03:30:19]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c6f53dc00d26c67ce3e8d9571996...