Fix tree bustage

base/message_loop.cc

 // Copyright (c) 2006-2008 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.
 
 #include "base/message_loop.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/lazy_instance.h"
@@ skipping 355 matching lines @@
     } else {
       // TODO(darin): Delete all tasks once it is safe to do so.
       // Until it is totally safe, just do it when running purify.
 #ifdef PURIFY
       delete task;
 #endif  // PURIFY
     }
   }
   did_work |= !deferred_non_nestable_work_queue_.empty();
   while (!deferred_non_nestable_work_queue_.empty()) {
-    Task* task = deferred_non_nestable_work_queue_.front().task;
-    deferred_non_nestable_work_queue_.pop();
     // TODO(darin): Delete all tasks once it is safe to do so.
     // Until it is totaly safe, just delete them to keep purify happy.
 #ifdef PURIFY
+    Task* task = deferred_non_nestable_work_queue_.front().task;
+#endif
+    deferred_non_nestable_work_queue_.pop();
+#ifdef PURIFY
     delete task;
 #endif
   }
   did_work |= !delayed_work_queue_.empty();
   while (!delayed_work_queue_.empty()) {
     Task* task = delayed_work_queue_.top().task;
     delayed_work_queue_.pop();
     delete task;
   }
   return did_work;
@@ skipping 215 matching lines @@
                                            Watcher *delegate) {
   return pump_libevent()->WatchFileDescriptor(
       fd,
       persistent,
       static_cast<base::MessagePumpLibevent::Mode>(mode),
       controller,
       delegate);
 }
 
 #endif