Simplify ParseCWSChannelServiceResponse

chrome/browser/extensions/app_notify_channel_setup.cc

 // Copyright (c) 2012 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/browser/extensions/app_notify_channel_setup.h"
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 389 matching lines @@
   return StringPrintf(kAuthorizationHeaderFormat, auth_token.c_str());
 }
 
 // static
 bool AppNotifyChannelSetup::ParseCWSChannelServiceResponse(
     const std::string& data, std::string* result) {
   scoped_ptr<base::Value> value(base::JSONReader::Read(data));
   if (!value.get() || value->GetType() != base::Value::TYPE_DICTIONARY)
     return false;
 
-  Value* channel_id_value;
   DictionaryValue* dict = static_cast<DictionaryValue*>(value.get());
-  if (!dict->Get("id", &channel_id_value))
-    return false;
-  if (channel_id_value->GetType() != base::Value::TYPE_STRING)
-    return false;
-
-  StringValue* channel_id = static_cast<StringValue*>(channel_id_value);
-  channel_id->GetAsString(result);
-  return true;
+  return dict->GetString("id", result);
 }