Revert r113405, since it appears to be causing a crash and a hang.

net/http/http_proxy_client_socket_pool.cc

Index: net/http/http_proxy_client_socket_pool.cc
diff --git a/net/http/http_proxy_client_socket_pool.cc b/net/http/http_proxy_client_socket_pool.cc
index c9831c38100650a09c76480a6d43d6d2faaa5751..81943765e3f0c567b6fc7e53242d5a81e0855e54 100644
--- a/net/http/http_proxy_client_socket_pool.cc
+++ b/net/http/http_proxy_client_socket_pool.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -391,21 +391,9 @@ HttpProxyClientSocketPool::HttpProxyClientSocketPool(
             new HttpProxyConnectJobFactory(transport_pool,
                                            ssl_pool,
                                            host_resolver,
-                                           net_log)) {
-  // We should always have a |transport_pool_| except in unit tests.
-  if (transport_pool_)
-    transport_pool_->AddLayeredPool(this);
-  if (ssl_pool_)
-    ssl_pool_->AddLayeredPool(this);
-}
+                                           net_log)) {}
 
-HttpProxyClientSocketPool::~HttpProxyClientSocketPool() {
-  if (ssl_pool_)
-    ssl_pool_->RemoveLayeredPool(this);
-  // We should always have a |transport_pool_| except in unit tests.
-  if (transport_pool_)
-    transport_pool_->RemoveLayeredPool(this);
-}
+HttpProxyClientSocketPool::~HttpProxyClientSocketPool() {}
 
 int HttpProxyClientSocketPool::RequestSocket(
     const std::string& group_name, const void* socket_params,
@@ -444,12 +432,6 @@ void HttpProxyClientSocketPool::Flush() {
   base_.Flush();
 }
 
-bool HttpProxyClientSocketPool::IsStalled() const {
-  return base_.IsStalled() ||
-      (transport_pool_ && transport_pool_->IsStalled()) ||
-      (ssl_pool_ && ssl_pool_->IsStalled());
-}
-
 void HttpProxyClientSocketPool::CloseIdleSockets() {
   base_.CloseIdleSockets();
 }
@@ -468,14 +450,6 @@ LoadState HttpProxyClientSocketPool::GetLoadState(
   return base_.GetLoadState(group_name, handle);
 }
 
-void HttpProxyClientSocketPool::AddLayeredPool(LayeredPool* layered_pool) {
-  base_.AddLayeredPool(layered_pool);
-}
-
-void HttpProxyClientSocketPool::RemoveLayeredPool(LayeredPool* layered_pool) {
-  base_.RemoveLayeredPool(layered_pool);
-}
-
 DictionaryValue* HttpProxyClientSocketPool::GetInfoAsValue(
     const std::string& name,
     const std::string& type,
@@ -506,10 +480,4 @@ ClientSocketPoolHistograms* HttpProxyClientSocketPool::histograms() const {
   return base_.histograms();
 }
 
-bool HttpProxyClientSocketPool::CloseOneIdleConnection() {
-  if (base_.CloseOneIdleSocket())
-    return true;
-  return base_.CloseOneIdleConnectionInLayeredPool();
-}
-
 }  // namespace net