Clang: enable -Wtautological-constant-out-of-range-compare

chrome/browser/chromeos/web_socket_proxy.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 "chrome/browser/chromeos/web_socket_proxy.h"
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ skipping 1292 matching lines @@
     }
   }
   return true;
 }
 
 bool Conn::EmitFrame(
     Chan* chan, WebSocketFrameOpcode opcode, const void* buf, size_t size) {
   uint8 header[10];
   int header_size = 2;
   DCHECK(chan);
-  DCHECK(opcode >= 0 && opcode < 16);
+  DCHECK(opcode >= 0 && static_cast<int>(opcode) < 16);
   header[0] = opcode | 0x80;  // FIN bit set.
   if (size < 126) {
     header[1] = size;
   } else if (size < (1 << 16)) {
     header[1] = 126;
     WriteNetworkInteger(size, header + 2, 2);
     header_size += 2;
   } else {
     header[1] = 127;
     WriteNetworkInteger(size, header + 2, 8);
@@ skipping 577 matching lines @@
 
 void WebSocketProxy::Shutdown() {
   static_cast<Serv*>(impl_)->Shutdown();
 }
 
 void WebSocketProxy::OnNetworkChange() {
   static_cast<Serv*>(impl_)->OnNetworkChange();
 }
 
 }  // namespace chromeos