Minor cleanup in use of intptr_t vs int

runtime/bin/dbg_connection_linux.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include <errno.h>  // NOLINT
 #include <stdio.h>  // NOLINT
 #include <stdlib.h>  // NOLINT
@@ skipping 30 matching lines @@
     // Sync message. Not yet implemented.
     UNIMPLEMENTED();
   } else {
     Log::Print("unexpected: receiving debugger connection event.\n");
     UNIMPLEMENTED();
   }
 }
 
 
 void DebuggerConnectionImpl::Handler(uword args) {
-  static const intptr_t kMaxEvents = 4;
+  static const int kMaxEvents = 4;
   struct epoll_event events[kMaxEvents];
   while (1) {
     const int no_timeout = -1;
     intptr_t result = TEMP_FAILURE_RETRY(
         epoll_wait(epoll_fd_, events, kMaxEvents, no_timeout));
     ASSERT(EAGAIN == EWOULDBLOCK);
     if (result == -1) {
       if (errno != EWOULDBLOCK) {
         perror("epoll_wait failed");
       }
@@ skipping 59 matching lines @@
 
 
 intptr_t DebuggerConnectionImpl::Receive(intptr_t socket, char* buf, int len) {
   return TEMP_FAILURE_RETRY(read(socket, buf, len));
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)