def GetChromeProxyRequestHeaderValue(self, key):
    'Get a specific Chrome-Proxy request header value.\n\n    Returns:\n        The value for a specific Chrome-Proxy request header value for a\n        given key. Returns None if no such key is present.\n    '
    if ('Chrome-Proxy' not in self.response.request_headers):
        return None
    chrome_proxy_request_header = self.response.request_headers['Chrome-Proxy']
    values = [v.strip() for v in chrome_proxy_request_header.split(',')]
    for value in values:
        kvp = value.split('=', 1)
        if ((len(kvp) == 2) and (kvp[0].strip() == key)):
            return kvp[1].strip()
    return None
Get a specific Chrome-Proxy request header value.

Returns:
    The value for a specific Chrome-Proxy request header value for a
    given key. Returns None if no such key is present.
def GetChromeProxyRequestHeaderValue(self, key):
    'Get a specific Chrome-Proxy request header value.\n\n    Returns:\n        The value for a specific Chrome-Proxy request header value for a\n        given key. Returns None if no such key is present.\n    '
    if ('Chrome-Proxy' not in self.response.request_headers):
        return None
    chrome_proxy_request_header = self.response.request_headers['Chrome-Proxy']
    values = [v.strip() for v in chrome_proxy_request_header.split(',')]
    for value in values:
        kvp = value.split('=', 1)
        if ((len(kvp) == 2) and (kvp[0].strip() == key)):
            return kvp[1].strip()
    return None