Start the crash_service on windows when running ui tests, if it's not running...

base/process_util_win.cc

Index: base/process_util_win.cc
===================================================================
--- base/process_util_win.cc	(revision 11070)
+++ base/process_util_win.cc	(working copy)
@@ -178,7 +178,7 @@
     // The process may not end immediately due to pending I/O
     if (WAIT_OBJECT_0 != WaitForSingleObject(process, 60 * 1000))
       DLOG(ERROR) << "Error waiting for process exit: " << GetLastError();
-  } else {
+  } else if (!result) {
     DLOG(ERROR) << "Unable to terminate process: " << GetLastError();
   }
   return result;