Fix license headers in chrome/browser/feedback/proto

chrome/browser/feedback/proto/extension.proto

-// Copyright 2009 Google Inc. All Rights Reserved.
-// Author: morgwai@google.com (Morgwai Kotarbinski)
-//
+// 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.
+
 // Messages sent from extension to feedback server as JSON.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package userfeedback;
 
 import "common.proto";
 import "chrome.proto";
@@ skipping 57 matching lines @@
   required CommonData common_data = 1;
 
   required WebData web_data = 2;
 
   required int32 type_id = 3;
 
   optional HtmlDocument html_document_structure = 4;
 
   optional ChromeData chrome_data = 5;
 };