Telemetry: Skip page if a page action is not supported by the browser.

tools/telemetry/telemetry/page/page_runner.py

 # Copyright (c) 2012 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 collections
 import copy
 import glob
 import logging
 import os
 import random
@@ skipping 477 matching lines @@
     else:
       logging.warning('%s:\n%s', page.url, traceback.format_exc())
       results.AddFailure(page, sys.exc_info())
   except (util.TimeoutException, exceptions.LoginException,
           exceptions.ProfilingException):
     ProcessError()
   except (exceptions.TabCrashException, exceptions.BrowserGoneException):
     ProcessError()
     # Run() catches these exceptions to relaunch the tab/browser, so re-raise.
     raise
+  except page_action.PageActionNotSupported as e:
+    results.AddSkip(page, 'Unsupported page action: %s' % e)
   except Exception:
     logging.warning('While running %s', page.url)
     exception_formatter.PrintFormattedException(*sys.exc_info())
     results.AddFailure(page, sys.exc_info())
   else:
     if expectation == 'fail':
       logging.warning('%s was expected to fail, but passed.\n', page.url)
     results.AddSuccess(page)
   finally:
     page_state.CleanUpPage(test)
@@ skipping 26 matching lines @@
     logging.error('Device is thermally throttled before running '
                   'performance tests, results will vary.')
 
 
 def _CheckThermalThrottling(platform):
   if not platform.CanMonitorThermalThrottling():
     return
   if platform.HasBeenThermallyThrottled():
     logging.error('Device has been thermally throttled during '
                   'performance tests, results will vary.')