Removed WebTextCheckingResult legacy API use.

content/public/common/webkit_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 WebKit 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 used by the content code, and which need
 // manual serialization code.  This is usually because they're not structs with
@@ skipping 214 matching lines @@
     LogParam(p->size, l);
     l->append(", ");
     LogParam(p->type, l);
     l->append(", ");
     LogParam(p->timeStampSeconds, l);
     l->append(")");
   }
 };
 
 template <>
+struct CONTENT_EXPORT ParamTraits<WebKit::WebString> {

[jam, 2012/02/10 18:00:09]

I think it was by design that we didn't have this before, i.e. we tried to avoid
using webkit types in chrome code, and only just when talking to WebKit API.

I'm CCing Darin for his thoughts.

+  typedef WebKit::WebString param_type;
+  static void Write(Message* m, const param_type& p);

[darin (slow to review), 2012/02/13 17:40:43]

yes, please please please don't add this.  WebString is not thread-safe.  you
should not be using it in chromium code except at the interface with WebKit.  it
is really too easy via PostTask to send a WebString to another thread.  that
will cause double-free bugs.

+  static bool Read(const Message* m, void** iter, param_type* p);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
 struct SimilarTypeTraits<WebKit::WebTextDirection> {
   typedef int Type;
 };
 
 template <>
 struct SimilarTypeTraits<WindowOpenDisposition> {
   typedef int Type;
 };
 
 template <>
 struct CONTENT_EXPORT ParamTraits<webkit::forms::PasswordForm> {
   typedef webkit::forms::PasswordForm param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, void** iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
 }  // namespace IPC
 
 #endif  // CONTENT_PUBLIC_COMMON_WEBKIT_PARAM_TRAITS_H_