Android Media Notification: remove "Touch to return" text.

Android Media Notification: remove "Touch to return" text.

The notification only shows the origin. Touching the notification to
return to the playing application is a very common pattern on Android.
It is not required for us to reinforce it with text, making the
notification less appealing.

BUG=528202
Committed: https://crrev.com/ded797a710c1a07b06f8d84d697c54671a942b35
Cr-Commit-Position: refs/heads/master@{#347377}

[mlamouri (slow - plz ping), 2015-09-04 10:20:50]

mlamouri@chromium.org changed reviewers:
+ avayvod@chromium.org

[whywhat, 2015-09-04 10:25:32]

lgtm

[mlamouri (slow - plz ping), 2015-09-04 10:31:19]

The CQ bit was checked by mlamouri@chromium.org

[commit-bot: I haz the power, 2015-09-04 10:31:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1326163002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1326163002/1

[commit-bot: I haz the power, 2015-09-04 10:54:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-04 10:55:08]

Patchset 1 (id:??) landed as
https://crrev.com/ded797a710c1a07b06f8d84d697c54671a942b35
Cr-Commit-Position: refs/heads/master@{#347377}

[Ian Wen, 2015-09-04 17:38:22]

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

[Ian Wen, 2015-09-04 17:38:22]

R.string.media_notification_text_no_link is only used in this class. If you
remove getStatus(), don't you need to remove the string in grd file as well?

[nyquist, 2015-09-04 23:41:31]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1307093008/ by nyquist@chromium.org.

The reason for reverting is: This breaks the downstream test
HostDriven_SigninTest.testManagedSignin..

[mlamouri (slow - plz ping), 2015-09-05 14:54:23]

On 2015/09/04 at 23:41:31, nyquist wrote:
> A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1307093008/ by nyquist@chromium.org.
> 
> The reason for reverting is: This breaks the downstream test
HostDriven_SigninTest.testManagedSignin..

I'm going to revert the revert because:
1. there is no link between that downstream test and this change.
2. the downstream test is still broken

[mlamouri (slow - plz ping), 2015-09-05 14:58:50]

On 2015/09/04 at 17:38:22, ianwen wrote:
> R.string.media_notification_text_no_link is only used in this class. If you
remove getStatus(), don't you need to remove the string in grd file as well?

I thought it was used by the webrtc notification. I would have swear I saw that
in cs but cs now says otherwise. I've added a note to myself to clean this up
next week.