SIGTERM should cause the application to exit on the Mac

chrome/browser/chrome_application_mac.mm

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/chrome_application_mac.h"
 
 @implementation CrApplication
 
 // -terminate: is the entry point for orderly "quit" operations in Cocoa.
 // This includes the application menu's quit menu item and keyboard
@@ skipping 66 matching lines @@
     }
     if (!found) {
       return NO;
     }
   }
 
   return [super sendAction:anAction to:aTarget from:sender];
 }
 
 @end
+
+namespace CrApplicationCC {
+
+void Terminate() {
+  [NSApp terminate:nil];
+}
+
+}  // namespace CrApplicationCC