Enable <webview>.executeScript outside of Apps and Extensions [1]

extensions/common/extension_messages.cc

 // Copyright 2014 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 "extensions/common/extension_messages.h"
 
 #include "content/public/common/common_param_traits.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_handler.h"
@@ skipping 231 matching lines @@
     r->insert(p.release());
   }
   return true;
 }
 
 void ParamTraits<ManifestPermissionSet>::Log(
     const param_type& p, std::string* l) {
   LogParam(p.map(), l);
 }
 
+void ParamTraits<HostID>::Write(
+    Message* m, const param_type& p) {
+  WriteParam(m, p.type());
+  WriteParam(m, p.id());
+}
+
+bool ParamTraits<HostID>::Read(
+    const Message* m, PickleIterator* iter, param_type* r) {
+  HostID::HostType type;
+  std::string id;
+  if (!ReadParam(m, iter, &type))
+    return false;
+  if (!ReadParam(m, iter, &id))
+    return false;
+  *r = HostID(type, id);
+  return true;
+}
+
+void ParamTraits<HostID>::Log(
+    const param_type& p, std::string* l) {
+  LogParam(p.type(), l);
+  LogParam(p.id(), l);
+}
+
 void ParamTraits<ExtensionMsg_PermissionSetStruct>::Write(Message* m,
                                                           const param_type& p) {
   WriteParam(m, p.apis);
   WriteParam(m, p.manifest_permissions);
   WriteParam(m, p.explicit_hosts);
   WriteParam(m, p.scriptable_hosts);
 }
 
 bool ParamTraits<ExtensionMsg_PermissionSetStruct>::Read(const Message* m,
                                                          PickleIterator* iter,
@@ skipping 32 matching lines @@
          ReadParam(m, iter, &p->active_permissions) &&
          ReadParam(m, iter, &p->withheld_permissions);
 }
 
 void ParamTraits<ExtensionMsg_Loaded_Params>::Log(const param_type& p,
                                                   std::string* l) {
   l->append(p.id);
 }
 
 }  // namespace IPC