Remove unused class MockBrowser in webkitpy/common/net/web_mock.py.

Remove unused class MockBrowser in webkitpy/common/net/web_mock.py.

BUG=677561
Review-Url: https://codereview.chromium.org/2682833002
Cr-Commit-Position: refs/heads/master@{#448837}
Committed: https://chromium.googlesource.com/chromium/src/+/14f257efb0042f30b14172077d0cb815eea05ebc

[qyearsley, 2017-02-07 22:37:27]

qyearsley@chromium.org changed reviewers:
+ jeffcarp@chromium.org

[jeffcarp, 2017-02-07 23:43:30]

lgtm

[qyearsley, 2017-02-08 00:02:28]

The CQ bit was checked by qyearsley@chromium.org

[commit-bot: I haz the power, 2017-02-08 00:04:05]

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, 2017-02-08 01:31:33]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1486512148995430, "parent_rev":
"d92763e259886274be5cfe3063b2502e0ae8f3c1", "commit_rev":
"14f257efb0042f30b14172077d0cb815eea05ebc"}

[commit-bot: I haz the power, 2017-02-08 01:40:49]

Description was changed from

==========
Remove unused class MockBrowser in webkitpy/common/net/web_mock.py.

BUG=677561
==========

to

==========
Remove unused class MockBrowser in webkitpy/common/net/web_mock.py.

BUG=677561

Review-Url: https://codereview.chromium.org/2682833002
Cr-Commit-Position: refs/heads/master@{#448837}
Committed:
https://chromium.googlesource.com/chromium/src/+/14f257efb0042f30b14172077d0c...
==========

[commit-bot: I haz the power, 2017-02-08 01:40:50]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/14f257efb0042f30b14172077d0c...