Add dependency_manager initialization to binary_manager

tools/telemetry/telemetry/testing/run_tests.py

Index: tools/telemetry/telemetry/testing/run_tests.py
diff --git a/tools/telemetry/telemetry/testing/run_tests.py b/tools/telemetry/telemetry/testing/run_tests.py
index d460c891912554b07e053265075296d1368b247b..b266b55152e4d2e2a09ae25f00791b84de3801b6 100644
--- a/tools/telemetry/telemetry/testing/run_tests.py
+++ b/tools/telemetry/telemetry/testing/run_tests.py
@@ -9,6 +9,7 @@ from telemetry.internal.browser import browser_finder
 from telemetry.internal.browser import browser_finder_exceptions
 from telemetry.internal.browser import browser_options
 from telemetry.internal.platform import device_finder
+from telemetry.internal.util import binary_manager
 from telemetry.internal.util import command_line
 from telemetry.testing import browser_test_case
 from telemetry.testing import options_for_unittests
@@ -45,6 +46,7 @@ class RunTestsCommand(command_line.OptparseCommand):
     parser.add_option('--exact-test-filter', action='store_true', default=False,
                       help='Treat test filter as exact matches (default is '
                            'substring matches).')
+    parser.add_option('--client-config', dest='client_config', default=None)
 
     typ.ArgumentParser.add_option_group(parser,
                                         "Options for running the tests",
@@ -61,6 +63,8 @@ class RunTestsCommand(command_line.OptparseCommand):
     if not args.retry_limit and not args.positional_args:
       args.retry_limit = 3
 
+    binary_manager.InitDependencyManager(args.client_config)

[nednguyen, 2015/08/13 22:20:45]

I think it's better to put this in the Run(self, args) method below. Putting
this in ProcessCommandLineArgs seems a bit off..

[aiolos (Not reviewing), 2015/08/13 22:28:32]

We can only do this if we move the check for possible browser to Run as well.
The call to browser_finder.FindBrowser will raise an exception if we don't
initialize the dependency_manager first.

+
     try:
       possible_browser = browser_finder.FindBrowser(args)
     except browser_finder_exceptions.BrowserFinderException, ex:
@@ -168,6 +172,9 @@ def _MatchesSelectedTest(name, selected_tests, selected_tests_are_exact):
 
 
 def _SetUpProcess(child, context): # pylint: disable=W0613

[nednguyen, 2015/08/13 22:20:45]

Nit: add comment explaining why we need to init the dependency manager again
here.

[aiolos (Not reviewing), 2015/08/13 22:28:32]

Acknowledged.

+  if binary_manager.NeedsInit():
+    binary_manager.InitDependencyManager(context.client_config)
+
   args = context
   if args.device and args.device == 'android':
     android_devices = device_finder.GetDevicesMatchingOptions(args)