add missing copyrights

skia/ext/SkTypeface_fake.cpp

+// Copyright (c) 2009 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 "SkTypeface.h"
 
 // ===== Begin Chrome-specific definitions =====
 
 uint32_t SkTypeface::UniqueID(const SkTypeface* face)
 {
     return 0;
 }
 
 void SkTypeface::serialize(SkWStream* stream) const {
 }
 
 SkTypeface* SkTypeface::Deserialize(SkStream* stream) {
   return NULL;
 }
 
 // ===== End Chrome-specific definitions =====