Make SkStream *not* ref counted.

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 SkStream;
-class SkStreamRewindable;
 
 // Empty implementations for SkImageDecoder.
 
 SkImageDecoder::SkImageDecoder() {}
 
 SkImageDecoder::~SkImageDecoder() {}
 
 SkImageDecoder* SkImageDecoder::Factory(SkStreamRewindable*) {
     return NULL;
 }
@@ skipping 13 matching lines @@
 }
 
 bool SkImageDecoder::DecodeMemory(const void*, size_t, SkBitmap*, SkColorType, Mode, Format*) {
     return false;
 }
 
 bool SkImageDecoder::buildTileIndex(SkStreamRewindable*, int *width, int *height) {
     return false;
 }
 
+bool SkImageDecoder::onBuildTileIndex(SkStreamRewindable* stream,
+                                      int* /*width*/, int* /*height*/) {
+    SkDELETE(stream);
+    return false;
+}
+
+
 bool SkImageDecoder::decodeSubset(SkBitmap*, const SkIRect&, SkColorType) {
     return false;
 }
 
 SkImageDecoder::Format SkImageDecoder::getFormat() const {
     return kUnknown_Format;
 }
 
 SkImageDecoder::Format SkImageDecoder::GetStreamFormat(SkStreamRewindable*) {
     return kUnknown_Format;
@@ skipping 55 matching lines @@
 }
 
 SkData* SkImageEncoder::encodeData(const SkBitmap&, int) {
     return NULL;
 }
 
 bool SkImageEncoder::encodeFile(const char file[], const SkBitmap& bm, int quality) {
     return false;
 }
 /////////////////////////////////////////////////////////////////////////