Mac/clang: Uncontentious fixes.

chrome/browser/cocoa/authorization_util.mm

 // Copyright (c) 2009 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/cocoa/authorization_util.h"
 
 #import <Foundation/Foundation.h>
 #include <sys/wait.h>
 
 #include <string>
@@ skipping 149 matching lines @@
   // local version.
   int local_exit_status;
   int* exit_status_pointer;
   if (exit_status) {
     exit_status_pointer = exit_status;
   } else {
     exit_status_pointer = &local_exit_status;
   }
 
   if (pid != -1) {
-    pid_t wait_result;
-    HANDLE_EINTR(wait_result = waitpid(pid, exit_status_pointer, 0));
+    pid_t wait_result = HANDLE_EINTR(waitpid(pid, exit_status_pointer, 0));
     if (wait_result != pid) {
       PLOG(ERROR) << "waitpid";
       *exit_status_pointer = -1;
     }
   } else {
     *exit_status_pointer = -1;
   }
 
   return status;
 }
 
 }  // namespace authorization_util