Remove kint32max.

chrome/browser/extensions/api/messaging/message_service.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/extensions/api/messaging/message_service.h"
 
+#include <stdint.h>
+
+#include <limits>
+
 #include "base/atomic_sequence_num.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/messaging/extension_message_port.h"
@@ skipping 176 matching lines @@
 
 content::RenderProcessHost*
     MessageService::MessagePort::GetRenderProcessHost() {
   return NULL;
 }
 
 // static
 void MessageService::AllocatePortIdPair(int* port1, int* port2) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
-  unsigned channel_id =
-      static_cast<unsigned>(g_next_channel_id.GetNext()) % (kint32max/2);
+  unsigned channel_id = static_cast<unsigned>(g_next_channel_id.GetNext()) %
+                        (std::numeric_limits<int32_t>::max() / 2);
   unsigned port1_id = channel_id * 2;
   unsigned port2_id = channel_id * 2 + 1;
 
   // Sanity checks to make sure our channel<->port converters are correct.
   DCHECK(IS_OPENER_PORT_ID(port1_id));
   DCHECK_EQ(GET_OPPOSITE_PORT_ID(port1_id), port2_id);
   DCHECK_EQ(GET_OPPOSITE_PORT_ID(port2_id), port1_id);
   DCHECK_EQ(GET_CHANNEL_ID(port1_id), GET_CHANNEL_ID(port2_id));
   DCHECK_EQ(GET_CHANNEL_ID(port1_id), channel_id);
   DCHECK_EQ(GET_CHANNEL_OPENER_ID(channel_id), port1_id);
@@ skipping 791 matching lines @@
 
   MessageChannelMap::iterator channel_iter = channels_.find(channel_id);
   if (channel_iter != channels_.end()) {
     for (const PendingMessage& message : queue) {
       DispatchMessage(message.first, channel_iter->second, message.second);
     }
   }
 }
 
 }  // namespace extensions