Remove the unused helper apps on OS X.

content/browser/plugin_process_host.cc

 // 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.
 
 #include "content/browser/plugin_process_host.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #elif defined(OS_POSIX)
 #include <utility>  // for pair<>
@@ skipping 171 matching lines @@
   if (channel_id.empty())
     return false;
 
   // Build command line for plugin. When we have a plugin launcher, we can't
   // allow "self" on linux and we need the real file path.
   const base::CommandLine& browser_command_line =
       *base::CommandLine::ForCurrentProcess();
   base::CommandLine::StringType plugin_launcher =
       browser_command_line.GetSwitchValueNative(switches::kPluginLauncher);
 
-#if defined(OS_MACOSX)
-  // Run the plugin process in a mode tolerant of heap execution without
-  // explicit mprotect calls. Some plugins still rely on this quaint and
-  // archaic "feature." See http://crbug.com/93551.
-  int flags = ChildProcessHost::CHILD_ALLOW_HEAP_EXECUTION;
-#elif defined(OS_LINUX)
+#if defined(OS_LINUX)
   int flags = plugin_launcher.empty() ? ChildProcessHost::CHILD_ALLOW_SELF :
                                         ChildProcessHost::CHILD_NORMAL;
 #else
   int flags = ChildProcessHost::CHILD_NORMAL;
 #endif
 
   base::FilePath exe_path = ChildProcessHost::GetChildPath(flags);
   if (exe_path.empty())
     return false;
 
@@ skipping 220 matching lines @@
 
 void PluginProcessHost::GetContexts(const ResourceHostMsg_Request& request,
                                     ResourceContext** resource_context,
                                     net::URLRequestContext** request_context) {
   *resource_context =
       resource_context_map_[request.origin_pid].resource_context;
   *request_context = (*resource_context)->GetRequestContext();
 }
 
 }  // namespace content