Remove //net (except for Android test stuff) and sdch

net/spdy/hpack_string_util.cc

-// 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 "net/spdy/hpack_string_util.h"
-
-#include "base/basictypes.h"
-
-namespace net {
-
-bool StringPiecesEqualConstantTime(base::StringPiece str1,
-                                   base::StringPiece str2) {
-  size_t size = str1.size();
-  if (str2.size() != size)
-    return false;
-
-  uint8 x = 0;
-  for (size_t i = 0; i < size; ++i) {
-    x |= str1[i] ^ str2[i];
-  }
-  return x == 0;
-}
-
-}  // namespace net