FBTF: Allow forward declaration of classes passed to sync IPC messages.

chrome/common/render_messages.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/render_messages.h"
 
 #include "chrome/common/thumbnail_score.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebCompositionUnderline.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebFindOptions.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebScreenInfo.h"
+#include "webkit/glue/webaccessibility.h"
 #include "webkit/glue/webcursor.h"
 
 #define MESSAGES_INTERNAL_IMPL_FILE \
   "chrome/common/render_messages_internal.h"
 #include "ipc/ipc_message_impl_macros.h"
+
+namespace IPC {
+
+void ParamTraits<webkit_glue::WebAccessibility>::Write(Message* m,
+                                                       const param_type& p) {
+  WriteParam(m, p.id);
+  WriteParam(m, p.name);
+  WriteParam(m, p.value);
+  WriteParam(m, static_cast<int>(p.role));
+  WriteParam(m, static_cast<int>(p.state));
+  WriteParam(m, p.location);
+  WriteParam(m, p.attributes);
+  WriteParam(m, p.children);
+}
+
+bool ParamTraits<webkit_glue::WebAccessibility>::Read(
+    const Message* m, void** iter, param_type* p) {
+  bool ret = ReadParam(m, iter, &p->id);
+  ret = ret && ReadParam(m, iter, &p->name);
+  ret = ret && ReadParam(m, iter, &p->value);
+  int role = -1;
+  ret = ret && ReadParam(m, iter, &role);
+  if (role >= webkit_glue::WebAccessibility::ROLE_NONE &&
+      role < webkit_glue::WebAccessibility::NUM_ROLES) {
+    p->role = static_cast<webkit_glue::WebAccessibility::Role>(role);
+  } else {
+    p->role = webkit_glue::WebAccessibility::ROLE_NONE;
+  }
+  int state = 0;
+  ret = ret && ReadParam(m, iter, &state);
+  p->state = static_cast<webkit_glue::WebAccessibility::State>(state);
+  ret = ret && ReadParam(m, iter, &p->location);
+  ret = ret && ReadParam(m, iter, &p->attributes);
+  ret = ret && ReadParam(m, iter, &p->children);
+  return ret;
+}
+
+void ParamTraits<webkit_glue::WebAccessibility>::Log(const param_type& p,
+                                                     std::wstring* l) {
+  l->append(L"(");
+  LogParam(p.id, l);
+  l->append(L", ");
+  LogParam(p.name, l);
+  l->append(L", ");
+  LogParam(p.value, l);
+  l->append(L", ");
+  LogParam(static_cast<int>(p.role), l);
+  l->append(L", ");
+  LogParam(static_cast<int>(p.state), l);
+  l->append(L", ");
+  LogParam(p.location, l);
+  l->append(L", ");
+  LogParam(p.attributes, l);
+  l->append(L", ");
+  LogParam(p.children, l);
+  l->append(L")");
+}
+
+}  // namespace IPC