Telemetry: small fix for extra browser args.

tools/telemetry/telemetry/core/browser_options_unittest.py

Index: tools/telemetry/telemetry/core/browser_options_unittest.py
diff --git a/tools/telemetry/telemetry/core/browser_options_unittest.py b/tools/telemetry/telemetry/core/browser_options_unittest.py
index eb0b3627711110a9eae1f2ed0d3298a93cf4ead0..7034d982cf84301a25ef8d2c5c726b3513547af3 100644
--- a/tools/telemetry/telemetry/core/browser_options_unittest.py
+++ b/tools/telemetry/telemetry/core/browser_options_unittest.py
@@ -72,6 +72,14 @@ class BrowserOptionsTest(unittest.TestCase):
     parser.parse_args(['--browser', 'any', '--profile-dir', 'foo'])
     self.assertEquals(options.browser_options.profile_dir, 'foo')
 
+  def testExtraBrowserArgs(self):
+    options = browser_options.BrowserFinderOptions()
+    parser = options.CreateParser()
+    parser.parse_args(['--extra-browser-args=--foo --bar'])
+
+    self.assertEquals(options.browser_options.extra_browser_args,
+                      set(['--foo','--bar']))
+
   def testMergeDefaultValues(self):
     options = browser_options.BrowserFinderOptions()
     options.already_true = True