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diff --git a/tools/aapt2/io/BigBufferInputStream.h b/tools/aapt2/io/BigBufferInputStream.h
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+++ b/tools/aapt2/io/BigBufferInputStream.h
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+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAPT_IO_BIGBUFFERINPUTSTREAM_H
+#define AAPT_IO_BIGBUFFERINPUTSTREAM_H
+
+#include "io/Io.h"
+#include "util/BigBuffer.h"
+
+namespace aapt {
+namespace io {
+
+class BigBufferInputStream : public InputStream {
+ public:
+  inline explicit BigBufferInputStream(const BigBuffer* buffer)
+      : buffer_(buffer), iter_(buffer->begin()) {}
+  virtual ~BigBufferInputStream() = default;
+
+  bool Next(const void** data, size_t* size) override;
+
+  void BackUp(size_t count) override;
+
+  bool CanRewind() const override;
+
+  bool Rewind() override;
+
+  size_t ByteCount() const override;
+
+  bool HadError() const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BigBufferInputStream);
+
+  const BigBuffer* buffer_;
+  BigBuffer::const_iterator iter_;
+  size_t offset_ = 0;
+  size_t bytes_read_ = 0;
+};
+
+}  // namespace io
+}  // namespace aapt
+
+#endif  // AAPT_IO_BIGBUFFERINPUTSTREAM_H