OS X Breakpad cleanup.

chrome/app/breakpad_mac_stubs.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/app/breakpad_mac.h"
 
 // Stubbed out versions of breakpad integration functions so we can compile
-// without linking in Breakpad on non-official builds.
+// unit tests without linking in Breakpad.
 
 bool IsCrashReporterEnabled() {
   return false;
 }
 
 void InitCrashProcessInfo() {
 }
 
 void DestructCrashReporter() {
 }
 
 void InitCrashReporter() {
 }
 
 void SetCrashKeyValue(NSString* key, NSString* value) {
 }
 
 void ClearCrashKeyValue(NSString* key) {
 }