Prepare remoting/ for compilation with OS X 10.7 deployment target.

remoting/host/installer/mac/uninstaller/remoting_uninstaller.mm

 // 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 "remoting/host/installer/mac/uninstaller/remoting_uninstaller.h"
 
 #import <Cocoa/Cocoa.h>
 
+#include "base/mac/authorization_util.h"
 #include "base/mac/scoped_authorizationref.h"
 #include "remoting/host/constants_mac.h"
 
 
 void logOutput(FILE* pipe) {
   char readBuffer[128];
   for (;;) {
     long bytesRead = read(fileno(pipe), readBuffer, sizeof(readBuffer) - 1);
     if (bytesRead < 1)
       break;
@@ skipping 60 matching lines @@
   }
 }
 
 - (void)sudoCommand:(const char*)cmd
       withArguments:(const char**)args
           usingAuth:(AuthorizationRef)authRef  {
   NSArray* arg_array = convertToNSArray(args);
   NSLog(@"Executing (as Admin): %s %@", cmd,
         [arg_array componentsJoinedByString:@" "]);
   FILE* pipe = nullptr;
-  OSStatus status;
-  status = AuthorizationExecuteWithPrivileges(authRef, cmd,
-                                              kAuthorizationFlagDefaults,
-                                              (char* const*)args,
-                                              &pipe);
+  OSStatus status = base::mac::ExecuteWithPrivilegesAndGetPID(
+      authRef, cmd, kAuthorizationFlagDefaults, args, &pipe, nullptr);
 
   if (status == errAuthorizationToolExecuteFailure) {
     NSLog(@"Error errAuthorizationToolExecuteFailure");
   } else if (status != errAuthorizationSuccess) {
     NSLog(@"Error while executing %s. Status=%d",
           cmd, static_cast<int>(status));
   } else {
     logOutput(pipe);
   }
 
@@ skipping 66 matching lines @@
   status = AuthorizationCopyRights(authRef, &rights, nullptr, flags, nullptr);
   if (status == errAuthorizationSuccess) {
     RemotingUninstaller* uninstaller =
         [[[RemotingUninstaller alloc] init] autorelease];
     [uninstaller remotingUninstallUsingAuth:authRef];
   }
   return status;
 }
 
 @end