Update clients to use new TestServer constructor.

chrome/test/pyautolib/pyautolib.i

Index: chrome/test/pyautolib/pyautolib.i
diff --git a/chrome/test/pyautolib/pyautolib.i b/chrome/test/pyautolib/pyautolib.i
index 736048f6645175f2870c10c1fb288b45f7c468f8..f4d2f074b9c31be2e18aa6b3c6a4e2cc70ee29c0 100644
--- a/chrome/test/pyautolib/pyautolib.i
+++ b/chrome/test/pyautolib/pyautolib.i
@@ -418,7 +418,8 @@ class TestServer {
     TYPE_SYNC,
   };
 
-  TestServer(Type type, const FilePath& document_root);
+  // Initialize a TestServer listening on the specified host (IP or hostname).
+  TestServer(Type type, const std::string& host, const FilePath& document_root);
   // Initialize a HTTPS TestServer with a specific set of HTTPSOptions.
   TestServer(const HTTPSOptions& https_options,
              const FilePath& document_root);