Remove stl_util's STLDeleteContainerPairSecondPointers from net/.

net/server/http_server.cc

Index: net/server/http_server.cc
diff --git a/net/server/http_server.cc b/net/server/http_server.cc
index c362e1b080f40b749d973fa2bbf34e0624af4a87..a4a85cfa9371466a6fd29de14d968d271bfe3912 100644
--- a/net/server/http_server.cc
+++ b/net/server/http_server.cc
@@ -12,7 +12,6 @@
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
-#include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ -45,8 +44,6 @@ HttpServer::HttpServer(std::unique_ptr<ServerSocket> server_socket,
 }
 
 HttpServer::~HttpServer() {
-  base::STLDeleteContainerPairSecondPointers(id_to_connection_.begin(),
-                                             id_to_connection_.end());
 }
 
 void HttpServer::AcceptWebSocket(
@@ -108,18 +105,20 @@ void HttpServer::Send500(int connection_id, const std::string& message) {
 }
 
 void HttpServer::Close(int connection_id) {
-  HttpConnection* connection = FindConnection(connection_id);
-  if (connection == NULL)
+  auto it = id_to_connection_.find(connection_id);
+  if (it == id_to_connection_.end())
     return;
 
-  id_to_connection_.erase(connection_id);
+  std::unique_ptr<HttpConnection> connection = std::move(it->second);
+  id_to_connection_.erase(it);
   delegate_->OnClose(connection_id);
 
   // The call stack might have callbacks which still have the pointer of
   // connection. Instead of referencing connection with ID all the time,
   // destroys the connection in next run loop to make sure any pending
   // callbacks in the call stack return.
-  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, connection);
+  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE,
+                                                  connection.release());
 }
 
 int HttpServer::GetLocalAddress(IPEndPoint* address) {
@@ -161,9 +160,10 @@ int HttpServer::HandleAcceptResult(int rv) {
     return rv;
   }
 
-  HttpConnection* connection =
-      new HttpConnection(++last_id_, std::move(accepted_socket_));
-  id_to_connection_[connection->id()] = connection;
+  std::unique_ptr<HttpConnection> connection_ptr =
+      base::MakeUnique<HttpConnection>(++last_id_, std::move(accepted_socket_));
+  HttpConnection* connection = connection_ptr.get();
+  id_to_connection_[connection->id()] = std::move(connection_ptr);
   delegate_->OnConnect(connection->id());
   if (!HasClosedConnection(connection))
     DoReadLoop(connection);
@@ -453,10 +453,10 @@ bool HttpServer::ParseHeaders(const char* data,
 }
 
 HttpConnection* HttpServer::FindConnection(int connection_id) {
-  IdToConnectionMap::iterator it = id_to_connection_.find(connection_id);
+  auto it = id_to_connection_.find(connection_id);
   if (it == id_to_connection_.end())
-    return NULL;
-  return it->second;
+    return nullptr;
+  return it->second.get();
 }
 
 // This is called after any delegate callbacks are called to check if Close()