In chromedriver, add /log url

chrome/test/webdriver/dispatch.h

Index: chrome/test/webdriver/dispatch.h
diff --git a/chrome/test/webdriver/dispatch.h b/chrome/test/webdriver/dispatch.h
index 5d86a525262a5f28c829575c8419ff3387f3858b..06399ee1aac607c384867df97cdb23750d17e272 100644
--- a/chrome/test/webdriver/dispatch.h
+++ b/chrome/test/webdriver/dispatch.h
@@ -100,7 +100,11 @@ class Dispatcher {
   // Registers a callback for the given pattern that will return a simple
   // "HTTP/1.1 200 OK" message with "ok" in the body. Used for checking the
   // status of the server.
-  void AddStatus(const std::string& pattern);
+  void AddHealthz(const std::string& pattern);
+
+  // Registers a callback for the given pattern that will return the current
+  // WebDriver log contents.
+  void AddLog(const std::string& pattern);
 
   // Registers a callback that will always respond with a
   // "HTTP/1.1 501 Not Implemented" message.