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

chrome/common/webkit_param_traits.cc

-// Copyright (c) 2010 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 "chrome/common/webkit_param_traits.h"
-
-#include "base/format_macros.h"
-
-namespace IPC {
-
-void ParamTraits<WebKit::WebCache::ResourceTypeStat>::Log(
-    const param_type& p, std::string* l) {
-  l->append(base::StringPrintf("%" PRIuS " %" PRIuS " %" PRIuS " %" PRIuS,
-                               p.count, p.size, p.liveSize, p.decodedSize));
-}
-
-void ParamTraits<WebKit::WebTextCheckingResult>::Write(Message* m,
-                                                       const param_type& p) {
-  WriteParam(m, static_cast<int>(p.error));
-  WriteParam(m, p.position);
-  WriteParam(m, p.length);
-}
-
-bool ParamTraits<WebKit::WebTextCheckingResult>::Read(const Message* m,
-                                                      void** iter,
-                                                      param_type* p) {
-  int error = 0;
-  if (!ReadParam(m, iter, &error))
-    return false;
-  if (error != WebKit::WebTextCheckingResult::ErrorSpelling &&
-      error != WebKit::WebTextCheckingResult::ErrorGrammar)
-    return false;
-  int position = 0;
-  if (!ReadParam(m, iter, &position))
-    return false;
-  int length = 0;
-  if (!ReadParam(m, iter, &length))
-    return false;
-
-  *p = WebKit::WebTextCheckingResult(
-      static_cast<WebKit::WebTextCheckingResult::Error>(error),
-      position,
-      length);
-  return true;
-}
-
-void ParamTraits<WebKit::WebTextCheckingResult>::Log(const param_type& p,
-                                                     std::string* l) {
-  l->append("(");
-  LogParam(static_cast<int>(p.error), l);
-  l->append(", ");
-  LogParam(p.position, l);
-  l->append(", ");
-  LogParam(p.length, l);
-  l->append(")");
-}
-
-}  // namespace IPC