Avoid heap allocations in IPAddress

content/browser/renderer_host/pepper/pepper_udp_socket_message_filter.cc

Index: content/browser/renderer_host/pepper/pepper_udp_socket_message_filter.cc
diff --git a/content/browser/renderer_host/pepper/pepper_udp_socket_message_filter.cc b/content/browser/renderer_host/pepper/pepper_udp_socket_message_filter.cc
index 08491b97b9bf4b711945dc721d51a8e4ed23ca76..41ab65feed171e3b5deb94a6beb88c47580d1b4f 100644
--- a/content/browser/renderer_host/pepper/pepper_udp_socket_message_filter.cc
+++ b/content/browser/renderer_host/pepper/pepper_udp_socket_message_filter.cc
@@ -364,7 +364,7 @@ int32_t PepperUDPSocketMessageFilter::OnMsgJoinGroup(
   if (!socket_)
     return PP_ERROR_FAILED;
 
-  std::vector<uint8_t> group;
+  net::IPAddressBytes group;
   uint16_t port;
 
   if (!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &group, &port))
@@ -385,7 +385,7 @@ int32_t PepperUDPSocketMessageFilter::OnMsgLeaveGroup(
   if (!socket_)
     return PP_ERROR_FAILED;
 
-  std::vector<uint8_t> group;
+  net::IPAddressBytes group;
   uint16_t port;
 
   if (!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &group, &port))
@@ -408,7 +408,7 @@ void PepperUDPSocketMessageFilter::DoBind(
       new net::UDPSocket(net::DatagramSocket::DEFAULT_BIND,
                          net::RandIntCallback(), NULL, net::NetLogSource()));
 
-  std::vector<uint8_t> address;
+  net::IPAddressBytes address;
   uint16_t port;
   if (!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &address, &port)) {
     SendBindError(context, PP_ERROR_ADDRESS_INVALID);
@@ -592,7 +592,7 @@ void PepperUDPSocketMessageFilter::DoSendTo(
     return;
   }
 
-  std::vector<uint8_t> address;
+  net::IPAddressBytes address;
   uint16_t port;
   if (!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &address, &port)) {
     SendSendToError(context, PP_ERROR_ADDRESS_INVALID);