Replace SkTLazy with base::Optional

skia/ext/opacity_filter_canvas.cc

 // Copyright 2015 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 "skia/ext/opacity_filter_canvas.h"
 #include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkTLazy.h"
 
 namespace skia {
 
 OpacityFilterCanvas::OpacityFilterCanvas(SkCanvas* canvas,
                                          float opacity,
                                          bool disable_image_filtering)
     : INHERITED(canvas),
       alpha_(SkScalarRoundToInt(opacity * 255)),
       disable_image_filtering_(disable_image_filtering) { }
 
@@ skipping 15 matching lines @@
                                         const SkMatrix* matrix,
                                         const SkPaint* paint) {
   SkTCopyOnFirstWrite<SkPaint> filteredPaint(paint);
   if (this->onFilter(&filteredPaint, kPicture_Type)) {
     // Unfurl pictures in order to filter nested paints.
     this->SkCanvas::onDrawPicture(picture, matrix, filteredPaint);
   }
 }
 
 }  // namespace skia