DeferredAutoreleasePool didn't work on Snow Leopard

base/message_pump_mac.h

Index: base/message_pump_mac.h
===================================================================
--- base/message_pump_mac.h	(revision 30652)
+++ base/message_pump_mac.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 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.
 
@@ -35,13 +35,6 @@
 #include <CoreFoundation/CoreFoundation.h>
 #include <IOKit/IOKitLib.h>
 
-#if defined(__OBJC__)
-@class NSAutoreleasePool;
-#else   // __OBJC__
-class NSAutoreleasePool;
-#endif  // __OBJC__
-
-
 namespace base {
 
 class Time;
@@ -67,10 +60,6 @@
   int nesting_level() const { return nesting_level_; }
   int run_nesting_level() const { return run_nesting_level_; }
 
-  // Factory method for creating an autorelease pool. Not all message
-  // pumps work with autorelease pools in the same way.
-  virtual NSAutoreleasePool* CreateAutoreleasePool();
-
  private:
   // Timer callback scheduled by ScheduleDelayedWork.  This does not do any
   // work, but it signals delayed_work_source_ so that delayed work can be
@@ -234,35 +223,13 @@
 };
 
 class MessagePumpNSApplication : public MessagePumpCFRunLoopBase {
-  // ObjC objects and C++ objects can't be friends, so this function
-  // will act as a friendly trampoline for
-  // MessagePumpNSAppDeferredAutoReleasePool to call
-  // set_needs_event_loop_wakeup.
-  friend void SetNeedsEventLoopWakeUpTrue(MessagePumpNSApplication* pump);
-
  public:
   MessagePumpNSApplication();
 
   virtual void DoRun(Delegate* delegate);
   virtual void Quit();
 
- protected:
-  // MessagePumpNSApplications need a special autorelease pool that works
-  // correctly when nested inside another autorelease pool.
-  virtual NSAutoreleasePool* CreateAutoreleasePool();
-
-  // Sets a flag that will trigger the sending of an NSEvent to wake up the
-  // NSApplication event loop when the run loop exits.
-  void set_needs_event_loop_wake_up_true() {
-    needs_event_loop_wake_up_ = true;
-  }
-
  private:
-  virtual void EnterExitRunLoop(CFRunLoopActivity activity);
-
-  // Send a null event through to the event loop if necessary.
-  void WakeUpEventLoop();
-
   // False after Quit is called.
   bool keep_running_;
 
@@ -272,10 +239,6 @@
   // in DoRun.
   bool running_own_loop_;
 
-  // True if an event should be sent to the event loop to cause it to spin
-  // when the run loop is exiting.
-  bool needs_event_loop_wake_up_;
-
   DISALLOW_COPY_AND_ASSIGN(MessagePumpNSApplication);
 };