Add LazyPixelRef ctor/dtor to fix the link error of https://bugs.webkit.org/show_bug.cgi?id=103555

skia/ext/lazy_pixel_ref.h

 // 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.
 
 #ifndef SKIA_EXT_LAZY_PIXEL_REF_H_
 #define SKIA_EXT_LAZY_PIXEL_REF_H_
 
 #include "third_party/skia/include/core/SkPixelRef.h"
 #include "third_party/skia/include/core/SkRect.h"
 
 namespace skia {
 
 // This class extends SkPixelRef to facilitate lazy image decoding on the impl
 // thread.
 class SK_API LazyPixelRef : public SkPixelRef {
  public:
+  LazyPixelRef() : SkPixelRef(0) {}
+  virtual ~LazyPixelRef() {}
+
   struct PrepareParams {
     // Clipping rect for this pixel ref.
     SkIRect clip_rect;
   };
 
   // Request the ImageDecodingStore to prepare image decoding for the
   // given clipping rect. Returns true is succeeded, or false otherwise.
   virtual bool PrepareToDecode(const PrepareParams& params) = 0;
 
   // Start decoding the image.
   virtual void Decode() = 0;
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_LAZY_PIXEL_REF_H_