Browser testing: Run android content shell tests on hosts with multiple devices connected.

Browser testing: Run android content shell tests on hosts with multiple devices connected.

The adb_reverse_forwarder.py script in [dartium]/build/android/ needs the --all-devices option added. We will also try to upstream this flag to chromium.
This change makes the test host reinstall the ContentShell apk on the device each time the device is restarted due to timeout or periodic reset, which takes about 10 seconds, but this is simpler and more like the existing behavior with android chrome.

R=ricow@google.com

Committed: https://code.google.com/p/dart/source/detail?r=39142

[Bill Hesse, 2014-08-12 13:20:12]

Requires the --all-devices flag to be added to
[dartium]/build/android/adb_reverse_forwarder.py in another CL.

https://codereview.chromium.org/467643002/diff/1/tools/testing/dart/browser_c...
File tools/testing/dart/browser_controller.dart (right):

https://codereview.chromium.org/467643002/diff/1/tools/testing/dart/browser_c...
tools/testing/dart/browser_controller.dart:1266: Future start() =>
Just a refactoring with handler setup pulled into functions.

[ricow1, 2014-08-12 13:29:23]

lgtm

https://codereview.chromium.org/467643002/diff/20001/tools/testing/dart/brows...
File tools/testing/dart/browser_controller.dart (right):

https://codereview.chromium.org/467643002/diff/20001/tools/testing/dart/brows...
tools/testing/dart/browser_controller.dart:1267: var test_driver_port =
globalConfiguration['test_driver_port'];
I think it sucks that we are sending in our globalConfiguration to the browser
controller. This basically means that we are making a strong binding between the
browser controller and the rest of the testing infrastructure. This did not
happen in this cl though

https://codereview.chromium.org/467643002/diff/20001/tools/testing/dart/brows...
tools/testing/dart/browser_controller.dart:1278: print('Driver server received
request ${request.uri}');
leftover print?

[Bill Hesse, 2014-08-12 14:40:30]

Committed patchset #3 manually as r39142 (presubmit successful).