Add Android device testers for WebRTC.

Add Android device testers for WebRTC.

Add two new testers that runs WebRTC tests on Android devices.
WebRTC tests are reusing a lot of the Chromium toolchain, which is
why these bots have the somewhat complicated setup of using a
Chromium checkout and then checkout ToT WebRTC into 
third_party/webrtc (using the webrtc.DEPS solution). 

This CL depends on the following CLs:
* https://codereview.chromium.org/23004021/ - Add WebRTC .isolate files to setup.py
* https://codereview.chromium.org/23075028/ - Resources download
* http://review.webrtc.org/2107004/ - Android config for WebRTC .isolate files.


TEST=successful builds with local master and slave with Nexus 7 device.
BUG=webrtc:1882
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=220061

[kjellander_chromium, 2013-06-19 14:15:43]

This CL depends on https://codereview.chromium.org/17466002/ before getting
landed.

[kjellander_chromium, 2013-06-19 14:21:15]

Actually, you may want to wait reviewing this CL until
https://codereview.chromium.org/16959006/ is reviewed and landed. 
I will rebase after that and upload a new patch set.

[kjellander_chromium, 2013-06-25 09:05:15]

On 2013/06/19 14:21:15, Henrik Kjellander wrote:
> Actually, you may want to wait reviewing this CL until
> https://codereview.chromium.org/16959006/ is reviewed and landed. 
> I will rebase after that and upload a new patch set.

Now it's ready for review, since I submitted the other CL with the refactorings.
The changes in here are now much easier to review.

[kjellander_chromium, 2013-08-26 20:04:13]

On 2013/06/25 09:05:15, Henrik Kjellander wrote:
> On 2013/06/19 14:21:15, Henrik Kjellander wrote:
> > Actually, you may want to wait reviewing this CL until
> > https://codereview.chromium.org/16959006/ is reviewed and landed. 
> > I will rebase after that and upload a new patch set.
> 
> Now it's ready for review, since I submitted the other CL with the
refactorings.
> The changes in here are now much easier to review.

PTAL Isaac, this should finally ready to deploy soon (as soon dependent CLs are
landed).

[kjellander_chromium, 2013-08-27 06:03:58]

I realized that https://codereview.chromium.org/23075028/ will need to be
committed to, before this works.

[Isaac (away), 2013-08-27 06:15:27]

LGTM w/ nits.

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
File masters/master.client.webrtc/master_android_cfg.py (right):

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:45: 'gclient_env':
builder_gclient_env,
I don't think this property is read.  The annotation script will handle it so
can be removed.

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:54: 'android_bot_id':
'webrtc-tests',
webrtc-tests-dbg

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:67: 'gclient_env':
builder_gclient_env,
remove prop

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:76: 'android_bot_id':
'webrtc-tests',
webrtc-tests-rel

https://codereview.chromium.org/17390019/diff/27001/scripts/master/factory/ch...
File scripts/master/factory/chromium_factory.py (right):

https://codereview.chromium.org/17390019/diff/27001/scripts/master/factory/ch...
scripts/master/factory/chromium_factory.py:1219: if self._target_os ==
'android':
Do you need this conditional?  Looks like the deps file is a no-op on
non-android already.

[kjellander_chromium, 2013-08-27 08:14:42]

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
File masters/master.client.webrtc/master_android_cfg.py (right):

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:45: 'gclient_env':
builder_gclient_env,
On 2013/08/27 06:15:27, Isaac wrote:
> I don't think this property is read.  The annotation script will handle it so
> can be removed.

Right, this was left from the early stages, before I found out that it needed to
be handled in the build/android/buildbot scripts.

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:54: 'android_bot_id':
'webrtc-tests',
On 2013/08/27 06:15:27, Isaac wrote:
> webrtc-tests-dbg

Done.

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:67: 'gclient_env':
builder_gclient_env,
On 2013/08/27 06:15:27, Isaac wrote:
> remove prop

Done.

https://codereview.chromium.org/17390019/diff/27001/masters/master.client.web...
masters/master.client.webrtc/master_android_cfg.py:76: 'android_bot_id':
'webrtc-tests',
On 2013/08/27 06:15:27, Isaac wrote:
> webrtc-tests-rel

Done.

https://codereview.chromium.org/17390019/diff/27001/scripts/master/factory/ch...
File scripts/master/factory/chromium_factory.py (right):

https://codereview.chromium.org/17390019/diff/27001/scripts/master/factory/ch...
scripts/master/factory/chromium_factory.py:1219: if self._target_os ==
'android':
On 2013/08/27 06:15:27, Isaac wrote:
> Do you need this conditional?  Looks like the deps file is a no-op on
> non-android already.

You're right, I don't. I'll just always add it instead.

[commit-bot: I haz the power, 2013-08-28 18:36:28]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/kjellander@chromium.org/17390019/42001

[commit-bot: I haz the power, 2013-08-28 18:37:17]

Change committed as 220061