Move the rest of the renderer->browser messages that belong in content. Also do a bunch of cleanup:

chrome/common/common_param_traits.h

-// Copyright (c) 2011 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 file is used to define IPC::ParamTraits<> specializations for a number
-// of types so that they can be serialized over IPC.  IPC::ParamTraits<>
-// specializations for basic types (like int and std::string) and types in the
-// 'base' project can be found in ipc/ipc_message_utils.h.  This file contains
-// specializations for types that are shared by more than one child process.
-
-#ifndef CHROME_COMMON_COMMON_PARAM_TRAITS_H_
-#define CHROME_COMMON_COMMON_PARAM_TRAITS_H_
-#pragma once
-
-#include "base/file_util.h"
-#include "base/ref_counted.h"
-#include "chrome/common/content_settings.h"
-#include "ipc/ipc_message_utils.h"
-#include "printing/native_metafile.h"
-
-// Forward declarations.
-class DictionaryValue;
-class ListValue;
-struct ThumbnailScore;
-struct WebApplicationInfo;
-
-namespace printing {
-struct PageRange;
-struct PrinterCapsAndDefaults;
-}  // namespace printing
-
-namespace IPC {
-
-template <>
-struct ParamTraits<ContentSetting> {
-  typedef ContentSetting param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template <>
-struct ParamTraits<ContentSettingsType> {
-  typedef ContentSettingsType param_type;
-  static void Write(Message* m, const param_type& p) {
-    WriteParam(m, static_cast<int>(p));
-  }
-  static bool Read(const Message* m, void** iter, param_type* r) {
-    int value;
-    if (!ReadParam(m, iter, &value))
-      return false;
-    if (value < 0 || value >= static_cast<int>(CONTENT_SETTINGS_NUM_TYPES))
-      return false;
-    *r = static_cast<param_type>(value);
-    return true;
-  }
-  static void Log(const param_type& p, std::string* l) {
-    LogParam(static_cast<int>(p), l);
-  }
-};
-
-template <>
-struct ParamTraits<ContentSettings> {
-  typedef ContentSettings param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template <>
-struct ParamTraits<WebApplicationInfo> {
-  typedef WebApplicationInfo param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template<>
-struct ParamTraits<ThumbnailScore> {
-  typedef ThumbnailScore param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template <>
-struct ParamTraits<printing::PageRange> {
-  typedef printing::PageRange param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template <>
-struct ParamTraits<printing::NativeMetafile> {
-  typedef printing::NativeMetafile param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template <>
-struct ParamTraits<printing::PrinterCapsAndDefaults> {
-  typedef printing::PrinterCapsAndDefaults param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, void** iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
-}  // namespace IPC
-
-#endif  // CHROME_COMMON_COMMON_PARAM_TRAITS_H_