[telemetry] Don't require forwarder if we are using RNDIS on Android.

Review URL: https://chromiumcodereview.appspot.com/23653019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221627 0039d316-1c4b-4281-b951-d872f2087c98

tools/telemetry/telemetry/core/backends/chrome/android_browser_finder.py

@@ -175,7 +175,8 @@ def FindAllAvailableBrowsers(finder_options, logging=real_logging):
 
   # See if the "forwarder" is installed -- we need this to host content locally
   # but make it accessible to the device.
-  if len(possible_browsers) and not adb_commands.HasForwarder():
+  if (len(possible_browsers) and not finder_options.android_rndis and
+      not adb_commands.HasForwarder()):
     logging.warn('telemetry detected an android device. However,')
     logging.warn('Chrome\'s port-forwarder app is not available.')
     logging.warn('To build:')

tools/telemetry/telemetry/core/browser_options.py

@@ -59,6 +59,8 @@ class BrowserFinderOptions(optparse.Values):
     self.output_file = None
     self.skip_navigate_on_repeat = False
 
+    self.android_rndis = False
+
   def Copy(self):
     return copy.deepcopy(self)