[Downloads] Fix copy and move operators for TestDownloadRequestHandler.

[Downloads] Fix copy and move operators for TestDownloadRequestHandler.

The 'support_byte_ranges' member was not being initialized during a copy
or move assignment. Interestingly, this was causing subtle flakiness
only on Windows.

BUG=598360
Committed: https://crrev.com/da82ea55fc1575d1950234bdebf54001c44f5a73
Cr-Commit-Position: refs/heads/master@{#383985}

[asanka, 2016-03-29 19:03:23]

Description was changed from

==========
WIP

BUG=
==========

to

==========
[Downloads] Fix copy and move operators for TestDownloadRequestHandler.

The 'support_byte_ranges' member was not being initialized during a copy
or move assignment. Interestingly, this was causing subtle flakiness
only on Windows.

BUG=598360
==========

[asanka, 2016-03-29 19:03:44]

asanka@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2016-03-30 15:35:56]

LGTM

[asanka, 2016-03-30 15:50:53]

The CQ bit was checked by asanka@chromium.org

[commit-bot: I haz the power, 2016-03-30 15:51:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1838963002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1838963002/60001

[commit-bot: I haz the power, 2016-03-30 16:04:58]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2016-03-30 16:06:44]

Description was changed from

==========
[Downloads] Fix copy and move operators for TestDownloadRequestHandler.

The 'support_byte_ranges' member was not being initialized during a copy
or move assignment. Interestingly, this was causing subtle flakiness
only on Windows.

BUG=598360
==========

to

==========
[Downloads] Fix copy and move operators for TestDownloadRequestHandler.

The 'support_byte_ranges' member was not being initialized during a copy
or move assignment. Interestingly, this was causing subtle flakiness
only on Windows.

BUG=598360

Committed: https://crrev.com/da82ea55fc1575d1950234bdebf54001c44f5a73
Cr-Commit-Position: refs/heads/master@{#383985}
==========

[commit-bot: I haz the power, 2016-03-30 16:06:44]

Patchset 4 (id:??) landed as
https://crrev.com/da82ea55fc1575d1950234bdebf54001c44f5a73
Cr-Commit-Position: refs/heads/master@{#383985}