Generate param traits size methods for IPC files in content/ (and traits it depends on).

content/common/media/media_param_traits.h

 // 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.
 
 #ifndef CONTENT_COMMON_MEDIA_MEDIA_PARAM_TRAITS_H_
 #define CONTENT_COMMON_MEDIA_MEDIA_PARAM_TRAITS_H_
 
 #include "content/common/content_export.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_param_traits.h"
 
 namespace media {
 class AudioParameters;
 struct VideoCaptureFormat;
 }
 
 namespace IPC {
 
 template <>
 struct CONTENT_EXPORT ParamTraits<media::AudioParameters> {
   typedef media::AudioParameters param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,
                    param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 template <>
 struct CONTENT_EXPORT ParamTraits<media::VideoCaptureFormat> {
   typedef media::VideoCaptureFormat param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
   static void Write(base::Pickle* m, const param_type& p);
   static bool Read(const base::Pickle* m,
                    base::PickleIterator* iter,
                    param_type* r);
   static void Log(const param_type& p, std::string* l);
 };
 
 } // namespace IPC
 
 #endif  // CONTENT_COMMON_MEDIA_MEDIA_PARAM_TRAITS_H_