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

net/socket/stream_socket.cc

-// Copyright (c) 2011 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/socket/stream_socket.h"
-
-#include "base/metrics/field_trial.h"
-#include "base/metrics/histogram.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/values.h"
-
-namespace net {
-
-StreamSocket::UseHistory::UseHistory()
-    : was_ever_connected_(false),
-      was_used_to_convey_data_(false),
-      omnibox_speculation_(false),
-      subresource_speculation_(false) {
-}
-
-StreamSocket::UseHistory::~UseHistory() {
-  EmitPreconnectionHistograms();
-}
-
-void StreamSocket::UseHistory::Reset() {
-  EmitPreconnectionHistograms();
-  was_ever_connected_ = false;
-  was_used_to_convey_data_ = false;
-  // omnibox_speculation_ and subresource_speculation_ values
-  // are intentionally preserved.
-}
-
-void StreamSocket::UseHistory::set_was_ever_connected() {
-  DCHECK(!was_used_to_convey_data_);
-  was_ever_connected_ = true;
-}
-
-void StreamSocket::UseHistory::set_was_used_to_convey_data() {
-  DCHECK(was_ever_connected_);
-  was_used_to_convey_data_ = true;
-}
-
-
-void StreamSocket::UseHistory::set_subresource_speculation() {
-  DCHECK(was_ever_connected_);
-  // TODO(jar): We should transition to marking a socket (or stream) at
-  // construction time as being created for speculative reasons.  This current
-  // approach of trying to track use of a socket to convey data can make
-  // mistakes when other sockets (such as ones sitting in the pool for a long
-  // time) are issued.  Unused sockets can be left over when a when a set of
-  // connections to a host are made, and one is "unlucky" and takes so long to
-  // complete a connection, that another socket is used, and recycled before a
-  // second connection comes available.  Similarly, re-try connections can leave
-  // an original (slow to connect socket) in the pool, and that can be issued
-  // to a speculative requester. In any cases such old sockets will fail when an
-  // attempt is made to used them!... and then it will look like a speculative
-  // socket was discarded without any user!?!?!
-  if (was_used_to_convey_data_)
-    return;
-  subresource_speculation_ = true;
-}
-
-void StreamSocket::UseHistory::set_omnibox_speculation() {
-  DCHECK(was_ever_connected_);
-  if (was_used_to_convey_data_)
-    return;
-  omnibox_speculation_ = true;
-}
-
-bool StreamSocket::UseHistory::was_used_to_convey_data() const {
-  DCHECK(!was_used_to_convey_data_ || was_ever_connected_);
-  return was_used_to_convey_data_;
-}
-
-void StreamSocket::UseHistory::EmitPreconnectionHistograms() const {
-  DCHECK(!subresource_speculation_ || !omnibox_speculation_);
-  // 0 ==> non-speculative, never connected.
-  // 1 ==> non-speculative never used (but connected).
-  // 2 ==> non-speculative and used.
-  // 3 ==> omnibox_speculative never connected.
-  // 4 ==> omnibox_speculative never used (but connected).
-  // 5 ==> omnibox_speculative and used.
-  // 6 ==> subresource_speculative never connected.
-  // 7 ==> subresource_speculative never used (but connected).
-  // 8 ==> subresource_speculative and used.
-  int result;
-  if (was_used_to_convey_data_)
-    result = 2;
-  else if (was_ever_connected_)
-    result = 1;
-  else
-    result = 0;  // Never used, and not really connected.
-
-  if (omnibox_speculation_)
-    result += 3;
-  else if (subresource_speculation_)
-    result += 6;
-  UMA_HISTOGRAM_ENUMERATION("Net.PreconnectUtilization2", result, 9);
-}
-
-}  // namespace net