Remove unused imports in webkitpy.

Remove unused imports in webkitpy.

This was done with `autoflake -i --remove-all-unused-imports`,
with minor editing afterwards, including in common/net/__init__.py,
where importing is done in order to expose a public API.

BUG=598897
Committed: https://crrev.com/b6a8ce44839c159ddfd9090db7ba88f89d6ef517
Cr-Commit-Position: refs/heads/master@{#384300}

[qyearsley, 2016-03-30 17:54:19]

qyearsley@chromium.org changed reviewers:
+ dpranke@google.com, ojan@chromium.org

[Dirk Pranke, 2016-03-31 02:06:20]

dpranke@chromium.org changed reviewers:
+ dpranke@chromium.org

[Dirk Pranke, 2016-03-31 02:06:20]

lgtm

[qyearsley, 2016-03-31 15:09:55]

qyearsley@chromium.org changed reviewers:
- dpranke@google.com

[qyearsley, 2016-03-31 15:10:07]

The CQ bit was checked by qyearsley@chromium.org

[commit-bot: I haz the power, 2016-03-31 15:10:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1847613002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1847613002/1

[commit-bot: I haz the power, 2016-03-31 16:17:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-31 16:20:05]

Description was changed from

==========
Remove unused imports in webkitpy.

This was done with `autoflake -i --remove-all-unused-imports`,
with minor editing afterwards, including in common/net/__init__.py,
where importing is done in order to expose a public API.

BUG=598897
==========

to

==========
Remove unused imports in webkitpy.

This was done with `autoflake -i --remove-all-unused-imports`,
with minor editing afterwards, including in common/net/__init__.py,
where importing is done in order to expose a public API.

BUG=598897

Committed: https://crrev.com/b6a8ce44839c159ddfd9090db7ba88f89d6ef517
Cr-Commit-Position: refs/heads/master@{#384300}
==========

[commit-bot: I haz the power, 2016-03-31 16:20:07]

Patchset 1 (id:??) landed as
https://crrev.com/b6a8ce44839c159ddfd9090db7ba88f89d6ef517
Cr-Commit-Position: refs/heads/master@{#384300}

[wkorman, 2016-03-31 23:36:58]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1846093002/ by wkorman@chromium.org.

The reason for reverting is: http://crbug.com/599579 - Breaks auto-rebaseline
bot..

[qyearsley, 2016-04-01 05:04:41]

On 2016/03/31 at 23:36:58, wkorman wrote:
> A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1846093002/ by wkorman@chromium.org.
> 
> The reason for reverting is: http://crbug.com/599579 - Breaks auto-rebaseline
bot..

This CL shouldn't have made any changes to any of the __init__.py files, which
in general expose public classes and methods so they can be imported elsewhere;
the change that broke the rebaseline bot may have been removing imports in
third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/__init__.py.