Convert verification of options structs to use the new user pointer handling (see r285350).

mojo/system/dispatcher.cc

 // Copyright 2013 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 "mojo/system/dispatcher.h"
 
 #include "base/logging.h"
 #include "mojo/system/constants.h"
 #include "mojo/system/message_pipe_dispatcher.h"
 #include "mojo/system/platform_handle_dispatcher.h"
@@ skipping 175 matching lines @@
 
 MojoResult Dispatcher::EndReadData(uint32_t num_bytes_read) {
   base::AutoLock locker(lock_);
   if (is_closed_)
     return MOJO_RESULT_INVALID_ARGUMENT;
 
   return EndReadDataImplNoLock(num_bytes_read);
 }
 
 MojoResult Dispatcher::DuplicateBufferHandle(
-    const MojoDuplicateBufferHandleOptions* options,
+    UserPointer<const MojoDuplicateBufferHandleOptions> options,
     scoped_refptr<Dispatcher>* new_dispatcher) {
   base::AutoLock locker(lock_);
   if (is_closed_)
     return MOJO_RESULT_INVALID_ARGUMENT;
 
   return DuplicateBufferHandleImplNoLock(options, new_dispatcher);
 }
 
 MojoResult Dispatcher::MapBuffer(
     uint64_t offset,
@@ skipping 116 matching lines @@
 }
 
 MojoResult Dispatcher::EndReadDataImplNoLock(uint32_t /*num_bytes_read*/) {
   lock_.AssertAcquired();
   DCHECK(!is_closed_);
   // By default, not supported. Only needed for data pipe dispatchers.
   return MOJO_RESULT_INVALID_ARGUMENT;
 }
 
 MojoResult Dispatcher::DuplicateBufferHandleImplNoLock(
-      const MojoDuplicateBufferHandleOptions* /*options*/,
+      UserPointer<const MojoDuplicateBufferHandleOptions> /*options*/,
       scoped_refptr<Dispatcher>* /*new_dispatcher*/) {
   lock_.AssertAcquired();
   DCHECK(!is_closed_);
   // By default, not supported. Only needed for buffer dispatchers.
   return MOJO_RESULT_INVALID_ARGUMENT;
 }
 
 MojoResult Dispatcher::MapBufferImplNoLock(
     uint64_t /*offset*/,
     uint64_t /*num_bytes*/,
@@ skipping 111 matching lines @@
 // DispatcherTransport ---------------------------------------------------------
 
 void DispatcherTransport::End() {
   DCHECK(dispatcher_);
   dispatcher_->lock_.Release();
   dispatcher_ = NULL;
 }
 
 }  // namespace system
 }  // namespace mojo