Fix a ChromeFrame crash which occurs while uploading UMA data. We use Chrome's http stack in ChromeFrame to upload this data. The crash occurs in the HttpAuthHandlerNegotiate code while attempting to perform a DNS resolution with a null HostResolver pointer. 
Fix a ChromeFrame crash which occurs while uploading UMA data. We use Chrome's http stack in
ChromeFrame to upload this data. The crash occurs in the HttpAuthHandlerNegotiate code while
attempting to perform a DNS resolution with a null HostResolver pointer. 

Fix is to use the  net::HttpAuthHandlerRegistryFactory::Create function to create the AuthHandler factory as this function takes in
the host resolver as an argument.

Fixes bug http://code.google.com/p/chromium/issues/detail?id=55467

Bug=55467

Review URL: http://codereview.chromium.org/3328023

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@59310 0039d316-1c4b-4281-b951-d872f2087c98

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