Reduce number of unnamed-type-template-args violations.

ipc/ipc_channel_posix.cc

 // Copyright (c) 2011 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 "ipc/ipc_channel_posix.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <stddef.h>
 #include <sys/types.h>
@@ skipping 782 matching lines @@
 
     ssize_t bytes_written = 1;
     int fd_written = -1;
 
     if (message_send_bytes_written_ == 0 &&
         !msg->file_descriptor_set()->empty()) {
       // This is the first chunk of a message which has descriptors to send
       struct cmsghdr *cmsg;
       const unsigned num_fds = msg->file_descriptor_set()->size();
 
-      DCHECK_LE(num_fds, FileDescriptorSet::MAX_DESCRIPTORS_PER_MESSAGE);
+      DCHECK_LE(num_fds, static_cast<unsigned>(
+          FileDescriptorSet::MAX_DESCRIPTORS_PER_MESSAGE));
       if (msg->file_descriptor_set()->ContainsDirectoryDescriptor()) {
         LOG(FATAL) << "Panic: attempting to transport directory descriptor over"
                       " IPC. Aborting to maintain sandbox isolation.";
         // If you have hit this then something tried to send a file descriptor
         // to a directory over an IPC channel. Since IPC channels span
         // sandboxes this is very bad: the receiving process can use openat
         // with ".." elements in the path in order to reach the real
         // filesystem.
       }
 
@@ skipping 433 matching lines @@
   channel_impl_->OverridePeerPid(peer_pid);
 }
 #endif  // defined(OS_LINUX)
 
 // static
 bool Channel::IsNamedServerInitialized(const std::string& channel_id) {
   return ChannelImpl::IsNamedServerInitialized(channel_id);
 }
 
 }  // namespace IPC