@classmethod
def definedPlatformTypes(cls):
    """
        Class method to get all platform types defined in API v4.
        
        @return list of all defined platform types
        @rtype list of str
        """
    return ['PLATFORM_TYPE_UNSPECIFIED', 'WINDOWS', 'LINUX', 'ANDROID',
        'OSX', 'IOS', 'ANY_PLATFORM', 'ALL_PLATFORMS', 'CHROME']
