Fix variable shadowing warnings in UDPSocketWin on VS2015

d:\src\cr3\src\net\udp\udp_socket_win.cc(330): error C2220: warning treated as error - no 'object' file generated
d:\src\cr3\src\net\udp\udp_socket_win.cc(330): warning C4457: declaration of 'address' hides function parameter
d:\src\cr3\src\net\udp\udp_socket_win.cc(319): note: see declaration of 'address'
d:\src\cr3\src\net\udp\udp_socket_win.cc(351): warning C4457: declaration of 'address' hides function parameter
d:\src\cr3\src\net\udp\udp_socket_win.cc(340): note: see declaration of 'address'

R=eroman@chromium.org
BUG=440500

Review URL: https://codereview.chromium.org/882733003

Cr-Commit-Position: refs/heads/master@{#313390}

net/udp/udp_socket_win.cc

@@ -327,10 +327,10 @@ int UDPSocketWin::GetPeerAddress(IPEndPoint* address) const {
     SockaddrStorage storage;
     if (getpeername(socket_, storage.addr, &storage.addr_len))
       return MapSystemError(WSAGetLastError());
-    scoped_ptr<IPEndPoint> address(new IPEndPoint());
-    if (!address->FromSockAddr(storage.addr, storage.addr_len))
+    scoped_ptr<IPEndPoint> remote_address(new IPEndPoint());
+    if (!remote_address->FromSockAddr(storage.addr, storage.addr_len))
       return ERR_ADDRESS_INVALID;
-    remote_address_.reset(address.release());
+    remote_address_.reset(remote_address.release());
   }
 
   *address = *remote_address_;
@@ -348,10 +348,10 @@ int UDPSocketWin::GetLocalAddress(IPEndPoint* address) const {
     SockaddrStorage storage;
     if (getsockname(socket_, storage.addr, &storage.addr_len))
       return MapSystemError(WSAGetLastError());
-    scoped_ptr<IPEndPoint> address(new IPEndPoint());
-    if (!address->FromSockAddr(storage.addr, storage.addr_len))
+    scoped_ptr<IPEndPoint> local_address(new IPEndPoint());
+    if (!local_address->FromSockAddr(storage.addr, storage.addr_len))
       return ERR_ADDRESS_INVALID;
-    local_address_.reset(address.release());
+    local_address_.reset(local_address.release());
     net_log_.AddEvent(NetLog::TYPE_UDP_LOCAL_ADDRESS,
                       CreateNetLogUDPConnectCallback(local_address_.get()));
   }