Add PermissionDialogTests for grouped Media requests

Add PermissionDialogTests for grouped Media requests

This adds tests to PermissionDialogTests that test Media requests with
the kUsePermissionManagerForMediaRequests feature enabled. When this
feature is enabled, media permissions can be requested in the same way
as other permissions.

Once the feature flag is removed, the old behavior that is being tested
can also be removed.

BUG=596786
Review-Url: https://codereview.chromium.org/2838873004
Cr-Commit-Position: refs/heads/master@{#468283}
Committed: https://chromium.googlesource.com/chromium/src/+/22831c3c2b720f6fe0c8570912d72ce039abf72c

[raymes, 2017-04-25 23:36:11]

raymes@chromium.org changed reviewers:
+ timloh@chromium.org

[Timothy Loh, 2017-04-27 03:51:04]

On 2017/04/25 23:36:11, raymes wrote:

lgtm

[raymes, 2017-05-01 03:53:50]

The CQ bit was checked by raymes@chromium.org

[commit-bot: I haz the power, 2017-05-01 03:54:07]

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, 2017-05-01 04:35:38]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493610830449590, "parent_rev":
"093418e5cfed99faf4b70372ef605d1e06c3098f", "commit_rev":
"22831c3c2b720f6fe0c8570912d72ce039abf72c"}

[commit-bot: I haz the power, 2017-05-01 04:36:13]

Description was changed from

==========
Add PermissionDialogTests for grouped Media requests

This adds tests to PermissionDialogTests that test Media requests with
the kUsePermissionManagerForMediaRequests feature enabled. When this
feature is enabled, media permissions can be requested in the same way
as other permissions.

Once the feature flag is removed, the old behavior that is being tested
can also be removed.

BUG=596786
==========

to

==========
Add PermissionDialogTests for grouped Media requests

This adds tests to PermissionDialogTests that test Media requests with
the kUsePermissionManagerForMediaRequests feature enabled. When this
feature is enabled, media permissions can be requested in the same way
as other permissions.

Once the feature flag is removed, the old behavior that is being tested
can also be removed.

BUG=596786

Review-Url: https://codereview.chromium.org/2838873004
Cr-Commit-Position: refs/heads/master@{#468283}
Committed:
https://chromium.googlesource.com/chromium/src/+/22831c3c2b720f6fe0c8570912d7...
==========

[commit-bot: I haz the power, 2017-05-01 04:36:14]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/22831c3c2b720f6fe0c8570912d7...