Handled nullptr argument in WaitForExit() and WaitForExitWithTimeout() methods.

base/process/process.h

Index: base/process/process.h
diff --git a/base/process/process.h b/base/process/process.h
index 808baeb1fc6ebdf7a9603b7b9b8d070b37694cdd..650b5e669be92c7261dd9464cff8190f67a36ba1 100644
--- a/base/process/process.h
+++ b/base/process/process.h
@@ -102,9 +102,13 @@ class BASE_EXPORT Process {
   // On POSIX, if the process has been signaled then |exit_code| is set to -1.
   // On Linux this must be a child process, however on Mac and Windows it can be
   // any process.
+  // NOTE: |exit_code| is optional, nullptr can be passed if exit code is not

[Lei Zhang, 2015/05/06 21:38:00]

"if the exit code"

[g.mehndiratt, 2015/05/21 09:29:52]

On 2015/05/06 21:38:00, Lei Zhang wrote:

Acknowledged.

+  // required

[Lei Zhang, 2015/05/06 21:38:00]

Please end the sentence with a period.

[g.mehndiratt, 2015/05/21 09:29:52]

On 2015/05/06 21:38:00, Lei Zhang wrote:

Acknowledged.

   bool WaitForExit(int* exit_code);
 
   // Same as WaitForExit() but only waits for up to |timeout|.
+  // NOTE: |exit_code| is optional, nullptr can be passed if exit code is not
+  // required
   bool WaitForExitWithTimeout(TimeDelta timeout, int* exit_code);
 
   // A process is backgrounded when it's priority is lower than normal.