Add SkPngChunkReader.

src/ports/SkImageDecoder_empty.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkImage.h"
 #include "SkImageDecoder.h"
 #include "SkImageEncoder.h"
 #include "SkMovie.h"
 #include "SkStream.h"
 
 class SkColorTable;
+class SkPngChunkReader;
 
 // Empty implementations for SkImageDecoder.
 
 SkImageDecoder::SkImageDecoder() {}
 
 SkImageDecoder::~SkImageDecoder() {}
 
 SkImageDecoder* SkImageDecoder::Factory(SkStreamRewindable*) {
     return nullptr;
 }
@@ skipping 26 matching lines @@
 }
 
 SkImageDecoder::Format SkImageDecoder::GetStreamFormat(SkStreamRewindable*) {
     return kUnknown_Format;
 }
 
 const char* SkImageDecoder::GetFormatName(Format) {
     return nullptr;
 }
 
-SkImageDecoder::Peeker* SkImageDecoder::setPeeker(Peeker*) {
+SkPngChunkReader* SkImageDecoder::setPeeker(SkPngChunkReader*) {
     return nullptr;
 }
 
 SkBitmap::Allocator* SkImageDecoder::setAllocator(SkBitmap::Allocator*) {
     return nullptr;
 }
 
 void SkImageDecoder::setSampleSize(int) {}
 
 bool SkImageDecoder::allocPixelRef(SkBitmap*, SkColorTable*) const {
@@ skipping 38 matching lines @@
 }
 
 SkData* SkImageEncoder::encodeData(const SkBitmap&, int) {
     return nullptr;
 }
 
 bool SkImageEncoder::encodeFile(const char file[], const SkBitmap& bm, int quality) {
     return false;
 }
 /////////////////////////////////////////////////////////////////////////