mac: Remove code that was only needed on 10.5

content/common/common.sb

 ;;
 ;; Copyright (c) 2012 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.
 ;;
 ; This configuration file isn't used on it's own, but instead implicitly
 ; included at the start of all other sandbox configuration files in Chrome.
 (version 1)
 
 ; DISABLE_SANDBOX_DENIAL_LOGGING expands to syntax that turns off log message
 ; printing on sandbox exceptions; this functionality only exists on 10.6. The
 ; --enable-sandbox-logging flag or system versions <10.6 cause this flag to
 ; expand to an empty string. http://crbug.com/26621
 (deny default @DISABLE_SANDBOX_DENIAL_LOGGING@)
 
 ; Support for programmatically enabling verbose debugging.
 ;ENABLE_LOGGING (debug deny)
 
 ; Allow sending signals to self - http://crbug.com/20370
 (allow signal (target self))
 
 ; Needed for full-page-zoomed controls - http://crbug.com/11325
 (allow sysctl-read)
 
 ; Each line is marked with the System version that needs it.
 ; This profile is tested with the following system versions:
 ;     10.5.6, 10.6

[jeremy, 2012/07/20 17:52:53]

If we're removing 10.5 support then I think you can remove the 10.5.6 comment.

[Nico, 2012/07/20 17:54:47]

Someone should go through the warmup code and see which of the "10.5.6" warmups
are still needed. This should say "10.7" too. In a different change.

 
 ; Loading System Libraries.
 (allow file-read*
     (regex #"^/System/Library/Frameworks($|/)")
     (regex #"^/System/Library/PrivateFrameworks($|/)")
     (regex #"^/System/Library/CoreServices($|/)"))  ; 10.5.6
 
 ; Needed for IPC on 10.6
-;10.6_OR_ABOVE (allow ipc-posix-shm)
+(allow ipc-posix-shm)
 
 ; Component build workaround for a dyld bug, used on OS X <= 10.6.
 ; Enables reading file metadata for the Chrome bundle and its parent paths.
 ; http://crbug.com/127465
 @COMPONENT_BUILD_WORKAROUND@