Pull ChildProcessSecurityPolicyImpl out to shared subfolder

content/browser/media/midi_host.cc

 // Copyright (c) 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.
 
 #include "content/browser/media/midi_host.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/process/process.h"
 #include "base/trace_event/trace_event.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/browser_main_loop.h"
-#include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/media/media_internals.h"
+#include "content/browser/shared/child_process_security_policy_helper.h"
 #include "content/common/media/midi_messages.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/media_observer.h"
 #include "content/public/browser/user_metrics.h"
 #include "media/midi/midi_manager.h"
 #include "media/midi/midi_message_queue.h"
 #include "media/midi/midi_message_util.h"
 
 namespace content {
 namespace {
@@ skipping 238 matching lines @@
     }
     waiting_data_length = media::midi::GetMidiMessageLength(current);
     if (waiting_data_length == 0)
       return false;  // Error: |current| should have been a valid status byte.
     --waiting_data_length;  // Found status byte
   }
   return waiting_data_length == 0 && !in_sysex;
 }
 
 }  // namespace content