Add test for ProcessSingleton hung rendezvous case.

chrome/browser/chrome_process_finder_win.h

Index: chrome/browser/chrome_process_finder_win.h
diff --git a/chrome/browser/chrome_process_finder_win.h b/chrome/browser/chrome_process_finder_win.h
index bc5c81f027a540470a94306456179dba3e6ae98b..9b471baed730aad465cfe2196afbc04cc208be26 100644
--- a/chrome/browser/chrome_process_finder_win.h
+++ b/chrome/browser/chrome_process_finder_win.h
@@ -29,6 +29,9 @@ HWND FindRunningChromeWindow(const base::FilePath& user_data_dir);
 NotifyChromeResult AttemptToNotifyRunningChrome(HWND remote_window,
                                                 bool fast_start);
 
+// Changes the notification timeout to |new_timeout|, returns the old timeout.
+int SetNotificationTimeoutForTesting(int new_timeout);

[erikwright (departed), 2015/03/10 19:22:49]

The name should include "InSeconds"

[Sigurður Ásgeirsson, 2015/03/10 19:48:15]

Done.

+
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_PROCESS_FINDER_WIN_H_