Run android tests through runtest.py.

This CL re-lands https://codereview.chromium.org/410033002 while addressed a few issues.
1. --results-directory must be passed along with --generate-gtest-json
2. --test-platform, --annotate, --build-number, --builder-name should be passed in order to upload results to correct dashboard
3. This CL depends on https://codereview.chromium.org/414223011/ to fix a bug in runtest.py

BUG=329102
R=yfriedman@chromium.org, navabi@chromium.org, jbudorick@chromium.org

Review URL: https://codereview.chromium.org/414383002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288134 0039d316-1c4b-4281-b951-d872f2087c98

build/android/buildbot/bb_device_steps.py

@@ -96,6 +96,31 @@ def _GetRevision(options):
   return revision
 
 
+def _RunTest(options, cmd, suite):
+  """Run test command with runtest.py.
+
+  Args:
+    options: options object.
+    cmd: the command to run.
+    suite: test name.
+  """
+  property_args = bb_utils.EncodeProperties(options)
+  args = [os.path.join(SLAVE_SCRIPTS_DIR, 'runtest.py')] + property_args
+  args += ['--test-platform', 'android']
+  if options.factory_properties.get('generate_gtest_json'):
+    args.append('--generate-json-file')
+    args += ['-o', 'gtest-results/%s' % suite,
+             '--annotate', 'gtest',
+             '--build-number', str(options.build_properties.get('buildnumber',
+                                                                '')),
+             '--builder-name', options.build_properties.get('buildername', '')]
+
+  if options.target == 'Release':
+    args += ['--target', 'Release']
+  args += cmd
+  RunCmd(args, cwd=DIR_BUILD_ROOT)
+
+
 def RunTestSuites(options, suites, suites_options=None):
   """Manages an invocation of test_runner.py for gtests.
 
@@ -121,11 +146,11 @@ def RunTestSuites(options, suites, suites_options=None):
 
   for suite in suites:
     bb_annotations.PrintNamedStep(suite)
-    cmd = ['build/android/test_runner.py', 'gtest', '-s', suite] + args
+    cmd = [suite] + args
     cmd += suites_options.get(suite, [])
     if suite == 'content_browsertests':
       cmd.append('--num_retries=1')
-    RunCmd(cmd)
+    _RunTest(options, cmd, suite)
 
 
 def RunChromeDriverTests(options):