mac: Remove IsOSLion().

chrome/app_shim/chrome_main_app_mode_mac.mm

 // Copyright 2013 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.
 
 // On Mac, one can't make shortcuts with command-line arguments. Instead, we
 // produce small app bundles which locate the Chromium framework and load it,
 // passing the appropriate data. This is the entry point into the framework for
 // those app bundles.
 
 #import <Cocoa/Cocoa.h>
@@ skipping 170 matching lines @@
   if (!ping_chrome_reply_received_)
     [NSApp terminate:nil];
 }
 
 void AppShimController::Init() {
   DCHECK(g_io_thread);
 
   SetUpMenu();
 
   // Chrome will relaunch shims when relaunching apps.
-  if (base::mac::IsOSLionOrLater())
-    [NSApp disableRelaunchOnLogin];
+  [NSApp disableRelaunchOnLogin];
 
   // The user_data_dir for shims actually contains the app_data_path.
   // I.e. <user_data_dir>/<profile_dir>/Web Applications/_crx_extensionid/
   user_data_dir_ = g_info->user_data_dir.DirName().DirName().DirName();
   CHECK(!user_data_dir_.empty());
 
   base::FilePath symlink_path =
       user_data_dir_.Append(app_mode::kAppShimSocketSymlinkName);
 
   base::FilePath socket_path;
@@ skipping 497 matching lines @@
     // minute.
     main_message_loop.PostTask(
         FROM_HERE,
         base::Bind(&AppShimController::Init,
                    base::Unretained(&controller)));
   }
 
   main_message_loop.Run();
   return 0;
 }