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The following descriptions were taken from <http://blogs.msdn.com/wndp/articles/IPV6_PAC_Extensions_v0_9.aspx>
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* myIpAddressEx():
Returns a semi-colon delimited string containing all IP addresses for localhost (IPv6 and/or IPv4), or an empty string if unable to resolve localhost to an IP address.
* dnsResolveEx(host):
Returns semi-colon delimited string containing IPv6 and IPv4 addresses or an empty string if host is not resolvable.
* isResolvableEx():
Returns TRUE if the host is resolvable to a IPv4 or IPv6 address, FALSE otherwise.
----------------------------
These differ from the vanilla PAC functions in the following ways:
* myIpAddressEx() returns all the addrsses for localhost (including IPv6 ones), whereas myIpAddress() only returns the first IPv4 one.
* On failure, myIpAddress() returns "127.0.0.1" whereas on failure myIpAddressEx() returns empty string.
* dnsResolveEx() returns a list of addresses (including IPV6 ones), whereas dnsResolve() only returns the first IPv4 address.
* On failure, dnsResolve() returns |null|, whereas on failure dnsResolveEx() returns empty string.
BUG=25407
TEST=ProxyResolverV8Test.DNSResolutionFailure, ProxyResolverJSBindingsTest.RestrictAddressFamily, ProxyResolverJSBindingsTest.ExFunctionsReturnList
Review URL: http://codereview.chromium.org/333006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30127 0039d316-1c4b-4281-b951-d872f2087c98
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