Update Native Client Authors to be Chromium Authors for the code moved from the

ppapi/native_client/src/shared/ppapi_proxy/browser_ppp_find.cc

-// Copyright (c) 2011 The Native Client Authors. All rights reserved.
+// 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.
 
 #include "native_client/src/shared/ppapi_proxy/browser_ppp_find.h"
 
 #include <string.h>
 
 // Include file order cannot be observed because ppp_instance declares a
 // structure return type that causes an error on Windows.
 // TODO(sehr, brettw): fix the return types and include order in PPAPI.
@@ skipping 57 matching lines @@
   static const PPP_Find_Dev find_interface = {
     StartFind,
     SelectFindResult,
     StopFind
   };
   return &find_interface;
 }
 
 }  // namespace ppapi_proxy