[ChromeDriver] Support mobile emulation on desktop Chrome.

chrome/test/chromedriver/client/webelement.py

Index: chrome/test/chromedriver/client/webelement.py
diff --git a/chrome/test/chromedriver/client/webelement.py b/chrome/test/chromedriver/client/webelement.py
index b3e6a641f5b553151efcddb1e2485deb079e52b3..5d7dda689f0e5a894946f94d200d669b56d25018 100644
--- a/chrome/test/chromedriver/client/webelement.py
+++ b/chrome/test/chromedriver/client/webelement.py
@@ -25,6 +25,9 @@ class WebElement(object):
     return self._Execute(
         Command.FIND_CHILD_ELEMENTS, {'using': strategy, 'value': target})
 
+  def GetText(self):
+    return self._Execute(Command.GET_ELEMENT_TEXT)
+
   def HoverOver(self):
     self._Execute(Command.HOVER_OVER_ELEMENT)