[Perf] Guard against impending output_profile_path option move.

tools/perf/profile_creators/profile_extender.py

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import copy
 
 from telemetry.core import platform
 from telemetry.util import wpr_modes
 from telemetry.internal.browser import browser_finder
 from telemetry.internal.browser import browser_finder_exceptions
@@ skipping 43 matching lines @@
     return None
 
   @property
   def finder_options(self):
     """The options to use to find and run the browser."""
     return self._finder_options
 
   @property
   def profile_path(self):
     """The path of the profile that the browser will use while it's running."""
-    return self.finder_options.output_profile_path
+    # TODO(eakuefner): Remove this after crrev.com/1874473006 rolls in.
+    return getattr(self.finder_options, 'output_profile_path',
+                   self.finder_options.browser_options.output_profile_path)
 
   @property
   def browser(self):
     return self._browser
 
   @property
   def os_name(self):
     """Name of OS that extender is currently running on."""
     return self._os_name
 
@@ skipping 76 matching lines @@
     """Return a possible_browser with the given options."""
     possible_browser = browser_finder.FindBrowser(finder_options)
     if not possible_browser:
       raise browser_finder_exceptions.BrowserFinderException(
           'No browser found.\n\nAvailable browsers:\n%s\n' %
           '\n'.join(browser_finder.GetAllAvailableBrowserTypes(finder_options)))
     finder_options.browser_options.browser_type = (
         possible_browser.browser_type)
 
     return possible_browser