[Android] Add sharding for AMP instrumentation tests.

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index dc683cb5d993fbd0b84a5f8279c0b9ce28dfc859..ef2e656e2c590f828cd81b71a884775304b6a8d5 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -126,18 +126,20 @@ def AddRemoteDeviceOptions(parser):
   group.add_argument('--collect',
                      help=('Only collects the test results if set. '
                            'Gets test_run_id from given file path.'))
+  group.add_argument('--num-shards', type=int,
+                     help='Number of devices to shard the test across.')
   group.add_argument('--remote-device', action='append',
                      help='Device type to run test on.')
   group.add_argument('--results-path',
-                     help='File path to download results to.')
+                     help='DEPRECATED File path to download results to.')

[rnephew (Reviews Here), 2015/10/26 20:42:18]

So is there no way to now specify if you want to download the results zip from
Appurify? That still seems like it could be useful for devs running it, and not
having to know how to deal with appurify's website.

[jbudorick, 2015/10/26 22:23:30]

Agreed. I don't think this should be deprecated.

[mikecase (-- gone --), 2015/10/27 01:27:43]

Well, now when you shard you are going to get num_shard zips. I guess I could
add the option to copy all of the result_zip files into a folder. Yeah, I'll do
that I suppose. I guess its still could be usable to devs if they set
--num_shards 1 and then they would get 1 zip with all of the results.

Done.

Now passing --results-dir /my/temp/dir
will put a bunch of results-<random tempfile string>.zip files into the
directory

   group.add_argument('--api-protocol',
                      help='HTTP protocol to use. (http or https)')
   group.add_argument('--api-address',
                      help='Address to send HTTP requests.')
   group.add_argument('--api-port',
                      help='Port to send HTTP requests to.')
-  group.add_argument('--runner-type',
-                     help='Type of test to run as.')
+  group.add_argument('--test-framework',
+                     help='Test framework to run test.')
   group.add_argument('--runner-package',
                      help='Package name of test.')
   group.add_argument('--device-type',