Avoid heap allocations in IPAddress

content/browser/renderer_host/pepper/pepper_socket_utils.cc

 // 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.
 
 #include "content/browser/renderer_host/pepper/pepper_socket_utils.h"
 
 #include <string>
 #include <vector>
 
+#include "base/containers/stack_container.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/site_instance.h"
@@ skipping 11 matching lines @@
 
 namespace content {
 namespace pepper_socket_utils {
 
 SocketPermissionRequest CreateSocketPermissionRequest(
     SocketPermissionRequest::OperationType type,
     const PP_NetAddress_Private& net_addr) {
   std::string host =
       ppapi::NetAddressPrivateImpl::DescribeNetAddress(net_addr, false);
   uint16_t port = 0;
-  std::vector<unsigned char> address;
+  base::StackVector<uint8_t, 16> address;
   ppapi::NetAddressPrivateImpl::NetAddressToIPEndPoint(
       net_addr, &address, &port);
   return SocketPermissionRequest(type, host, port);
 }
 
 bool CanUseSocketAPIs(bool external_plugin,
                       bool private_api,
                       const SocketPermissionRequest* params,
                       int render_process_id,
                       int render_frame_id) {
@@ skipping 129 matching lines @@
 }
 
 void OpenUDPFirewallHole(const net::IPEndPoint& address,
                          FirewallHoleOpenCallback callback) {
   OpenFirewallHole(address, chromeos::FirewallHole::PortType::UDP, callback);
 }
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace pepper_socket_utils
 }  // namespace content