Refactor decorators into thier own python class

tools/chrome_proxy/webdriver/common.py

Index: tools/chrome_proxy/webdriver/common.py
diff --git a/tools/chrome_proxy/webdriver/common.py b/tools/chrome_proxy/webdriver/common.py
index 9f2cb9825c8c0a3ba7ddfb788835d8dc827b51c0..75769bf0752363a21dcc926b281e4692bcc85c49 100644
--- a/tools/chrome_proxy/webdriver/common.py
+++ b/tools/chrome_proxy/webdriver/common.py
@@ -674,71 +674,3 @@ class IntegrationTest(unittest.TestCase):
     testRunner = unittest.runner.TextTestRunner(verbosity=2,
       failfast=flags.failfast, buffer=(not flags.disable_buffer))
     testRunner.run(tests)
-
-# Platform-specific decorators.
-# These decorators can be used to only run a test function for certain platforms
-# by annotating the function with them.
-
-def AndroidOnly(func):
-  def wrapper(*args, **kwargs):
-    if ParseFlags().android:
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test runs on Android only.')
-  return wrapper
-
-def NotAndroid(func):
-  def wrapper(*args, **kwargs):
-    if not ParseFlags().android:
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test does not run on Android.')
-  return wrapper
-
-def WindowsOnly(func):
-  def wrapper(*args, **kwargs):
-    if sys.platform == 'win32':
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test runs on Windows only.')
-  return wrapper
-
-def NotWindows(func):
-  def wrapper(*args, **kwargs):
-    if sys.platform != 'win32':
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test does not run on Windows.')
-  return wrapper
-
-def LinuxOnly(func):
-  def wrapper(*args, **kwargs):
-    if sys.platform.startswith('linux'):
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test runs on Linux only.')
-  return wrapper
-
-def NotLinux(func):
-  def wrapper(*args, **kwargs):
-    if sys.platform.startswith('linux'):
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test does not run on Linux.')
-  return wrapper
-
-def MacOnly(func):
-  def wrapper(*args, **kwargs):
-    if sys.platform == 'darwin':
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test runs on Mac OS only.')
-  return wrapper
-
-def NotMac(func):
-  def wrapper(*args, **kwargs):
-    if sys.platform == 'darwin':
-      func(*args, **kwargs)
-    else:
-      args[0].skipTest('This test does not run on Mac OS.')
-  return wrapper