Remove usage of a deprecated TestServer constructor.
Remove usage of a deprecated TestServer constructor.

Hostname must now be explicitly specified (previously default was 127.0.0.1). See the following CL for further details:

http://codereview.chromium.org/9369029/

A follow-up CL will remove the deprecated constructor:

http://codereview.chromium.org/9431002/

BUG=114369
TEST=everything still compiles and passes


Review URL: http://codereview.chromium.org/9429052

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@123095 0039d316-1c4b-4281-b951-d872f2087c98

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