child processes: wait 60 seconds before sending SIGALRM.

content/child/child_thread.cc

Index: content/child/child_thread.cc
diff --git a/content/child/child_thread.cc b/content/child/child_thread.cc
index 05650ade06f688cd69040d437d44b6c508cdb013..9d77cd64056480fd9d1658526a0bc4fa406107bb 100644
--- a/content/child/child_thread.cc
+++ b/content/child/child_thread.cc
@@ -70,12 +70,11 @@ class SuicideOnChannelErrorFilter : public IPC::ChannelProxy::MessageFilter {
     //
     // So, we install a filter on the channel so that we can process this event
     // here and kill the process.
-    //
-    // We want to kill this process after giving it 30 seconds to run the exit
-    // handlers. SIGALRM has a default disposition of terminating the
-    // application.
     if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kChildCleanExit))
-      alarm(30);
+      // If clean exit is requested, we want to kill this process after giving
+      // it 60 seconds to run exit handlers. Exit handlers may including writing
+      // profile data to disk (which happens under profile collection mode).

[Avi (use Gerrit), 2013/08/01 15:29:43]

Yeah, you need braces here. Even if there's only one line of code, there's more
than one line of stuff.

[asharif1, 2013/08/01 15:33:42]

Done.

+      alarm(60);
     else
       _exit(0);
   }