[Chromedriver] Add Device Metrics override support to ChromeDriver via Capabilities

chrome/test/chromedriver/client/chromedriver.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 command_executor
 from command_executor import Command
 from webelement import WebElement
 
 
 class ChromeDriverException(Exception):
@@ skipping 47 matching lines @@
 
 
 class ChromeDriver(object):
   """Starts and controls a single Chrome instance on this machine."""
 
   def __init__(self, server_url, chrome_binary=None, android_package=None,
                android_activity=None, android_process=None,
                android_use_running_app=None, chrome_switches=None,
                chrome_extensions=None, chrome_log_path=None,
                debugger_address=None, browser_log_level=None,
-               experimental_options=None):
+               mobile_emulation=None, experimental_options=None):
     self._executor = command_executor.CommandExecutor(server_url)
 
     options = {}
 
     if experimental_options:
       assert isinstance(experimental_options, dict)
       options = experimental_options.copy()
 
     if android_package:
       options['androidPackage'] = android_package
       if android_activity:
         options['androidActivity'] = android_activity
       if android_process:
         options['androidProcess'] = android_process
       if android_use_running_app:
         options['androidUseRunningApp'] = android_use_running_app
     elif chrome_binary:
       options['binary'] = chrome_binary
 
     if chrome_switches:
       assert type(chrome_switches) is list
       options['args'] = chrome_switches
 
+    if mobile_emulation:
+      assert type(mobile_emulation) is dict
+      options['mobileEmulation'] = mobile_emulation
+
     if chrome_extensions:
       assert type(chrome_extensions) is list
       options['extensions'] = chrome_extensions
 
     if chrome_log_path:
       assert type(chrome_log_path) is str
       options['logPath'] = chrome_log_path
 
     if debugger_address:
       assert type(debugger_address) is str
@@ skipping 229 matching lines @@
     return self.ExecuteCommand(Command.GET_LOG, {'type': type})
 
   def GetAvailableLogTypes(self):
     return self.ExecuteCommand(Command.GET_AVAILABLE_LOG_TYPES)
 
   def IsAutoReporting(self):
     return self.ExecuteCommand(Command.IS_AUTO_REPORTING)
 
   def SetAutoReporting(self, enabled):
     self.ExecuteCommand(Command.SET_AUTO_REPORTING, {'enabled': enabled})