Index: chrome/browser/net/bit_stream_reader.cc |
diff --git a/chrome/browser/net/bit_stream_reader.cc b/chrome/browser/net/bit_stream_reader.cc |
deleted file mode 100644 |
index 9e9f0aaf8d2eccc144be12f8eafa04acbf04d7d6..0000000000000000000000000000000000000000 |
--- a/chrome/browser/net/bit_stream_reader.cc |
+++ /dev/null |
@@ -1,63 +0,0 @@ |
-// Copyright 2014 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 "chrome/browser/net/bit_stream_reader.h" |
- |
-#include "base/big_endian.h" |
-#include "base/logging.h" |
-#include "base/numerics/safe_conversions.h" |
- |
-namespace internal { |
- |
-BitStreamReader::BitStreamReader(const base::StringPiece& source) |
- : source_(source), current_byte_(0), current_bit_(7) { |
- DCHECK_LT(source_.length(), UINT32_MAX); |
-} |
- |
-bool BitStreamReader::ReadUnaryEncoding(uint64_t* out) { |
- if (BitsLeft() == 0) |
- return false; |
- |
- *out = 0; |
- while ((BitsLeft() > 0) && ReadBit()) |
- ++(*out); |
- |
- return true; |
-} |
- |
-bool BitStreamReader::ReadBits(uint8_t num_bits, uint64_t* out) { |
- DCHECK_LE(num_bits, 64); |
- |
- if (BitsLeft() < num_bits) |
- return false; |
- |
- *out = 0; |
- for (uint8_t i = 0; i < num_bits; ++i) |
- (*out) |= (static_cast<uint64_t>(ReadBit()) << (num_bits - (i + 1))); |
- |
- return true; |
-} |
- |
-uint64_t BitStreamReader::BitsLeft() const { |
- if (current_byte_ == source_.length()) |
- return 0; |
- DCHECK_GT(source_.length(), current_byte_); |
- return (source_.length() - (current_byte_ + 1)) * 8 + current_bit_ + 1; |
-} |
- |
-uint8_t BitStreamReader::ReadBit() { |
- DCHECK_GT(BitsLeft(), 0u); |
- DCHECK(current_bit_ < 8 && current_bit_ >= 0); |
- uint8_t res = |
- (source_.data()[current_byte_] & (1 << current_bit_)) >> current_bit_; |
- current_bit_--; |
- if (current_bit_ < 0) { |
- current_byte_++; |
- current_bit_ = 7; |
- } |
- |
- return res; |
-} |
- |
-} // namespace internal |