Fix webdriver test setup script for windows and add proper path for pip.

tools/testing/webdriver_test_setup.py

 #!/usr/bin/python
 
 # Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Run to install the necessary components to run webdriver on the buildbots or
 # on your local machine. 
 # Note: The setup steps can be done fairly easily by hand. This script is 
 # intended to simply and reduce the time for setup since there are a fair number
@@ skipping 35 matching lines @@
   return args
 
 def find_depot_tools_location(is_buildbot):
   """Depot_tools is our default install location for chromedriver, so we find
   its location on the filesystem.
   Arguments:
   is_buildbot - True if we are running buildbot machine setup (we can't detect
       this automatically because this script is not run at build time).
   """
   if is_buildbot:
-    depot_tools = os.path.join('b', 'depot_tools')
+    depot_tools = os.sep + os.path.join('b', 'depot_tools')
     if 'win32' in sys.platform or 'cygwin' in sys.platform:
       depot_tools = os.path.join('e:', depot_tools)
     return depot_tools
   else:
     path = os.environ['PATH'].split(os.pathsep)
     for loc in path:
       if 'depot_tools' in loc:
         return loc
   raise Exception("Could not find depot_tools in your path.")
 
@@ skipping 145 matching lines @@
   def __init__(self, is_buildbot):
     self.is_buildbot = is_buildbot
 
   def run(self): 
     print 'Installing Selenium Python Bindings'
     admin_keyword = ''
     python_cmd = 'python'
     pip_cmd = 'pip'
     if 'win32' not in sys.platform and 'cygwin' not in sys.platform:
       admin_keyword = 'sudo'
+      pip_cmd = '/usr/local/bin/pip'
     else:
       # The python installation is "special" on Windows buildbots.
       if self.is_buildbot:
         python_loc = os.path.join(
-            find_depot_tools_location(self.is_buildbot), 'python-bin')
+            find_depot_tools_location(self.is_buildbot), 'python_bin')
         python_cmd = os.path.join(python_loc, 'python')
         pip_cmd = os.path.join(python_loc, 'Scripts', pip_cmd)
       else:
         path = os.environ['PATH'].split(os.pathsep)
         for loc in path:
           if 'python' in loc or 'Python' in loc:
             pip_cmd = os.path.join(loc, 'Scripts', pip_cmd)
             break
     page = urllib2.urlopen(self.SETUPTOOLS_SITE)
     run_cmd('%s %s' % (admin_keyword, python_cmd), page.read())
     page = urllib2.urlopen(self.PIP_SITE)
     run_cmd('%s %s' % (admin_keyword, python_cmd), page.read())
     run_cmd('%s %s install -U selenium' % (admin_keyword, pip_cmd))
 
 def main():
   args = parse_args()
   SeleniumBindingsInstaller(args.buildbot).run()
   GoogleCodeInstaller('chromedriver', find_depot_tools_location(args.buildbot),
       lambda x: 'chromedriver_%(os)s_%(version)s.zip' % x).run()
   if 'win32' not in sys.platform and 'cygwin' not in sys.platform:
     GoogleCodeInstaller('selenium', os.path.dirname(os.path.abspath(__file__)),
         lambda x: 'selenium-server-standalone-%(version)s.jar' % x).run()
 
   if args.firefox:
     FirefoxInstaller().run()
 
 if __name__ == '__main__':
   main()