Telemetry support for extensions.

tools/telemetry/telemetry/android_browser_finder.py

Index: tools/telemetry/telemetry/android_browser_finder.py
===================================================================
--- tools/telemetry/telemetry/android_browser_finder.py	(revision 182312)
+++ tools/telemetry/telemetry/android_browser_finder.py	(working copy)
@@ -44,8 +44,7 @@
 class PossibleAndroidBrowser(possible_browser.PossibleBrowser):
   """A launchable android browser instance."""
   def __init__(self, browser_type, options, *args):
-    super(PossibleAndroidBrowser, self).__init__(
-        browser_type, options)
+    super(PossibleAndroidBrowser, self).__init__(browser_type, options)
     self._args = args
 
   def __repr__(self):
@@ -61,6 +60,11 @@
     backend.SetBrowser(b)
     return b
 
+  def SupportsOptions(self, options):
+    if len(options.extensions_to_load) != 0:
+      return False
+    return True
+
 def FindAllAvailableBrowsers(options, logging=real_logging):
   """Finds all the desktop browsers available on this machine."""
   if not adb_commands.IsAndroidSupported():