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

mojo/system/dispatcher.h

 // 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.
 
 #ifndef MOJO_SYSTEM_DISPATCHER_H_
 #define MOJO_SYSTEM_DISPATCHER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 92 matching lines @@
                       UserPointer<uint32_t> num_bytes,
                       MojoReadDataFlags flags);
   MojoResult BeginReadData(UserPointer<const void*> buffer,
                            UserPointer<uint32_t> buffer_num_bytes,
                            MojoReadDataFlags flags);
   MojoResult EndReadData(uint32_t num_bytes_read);
   // |options| may be null. |new_dispatcher| must not be null, but
   // |*new_dispatcher| should be null (and will contain the dispatcher for the
   // new handle on success).
   MojoResult DuplicateBufferHandle(
-      const MojoDuplicateBufferHandleOptions* options,
+      UserPointer<const MojoDuplicateBufferHandleOptions> options,
       scoped_refptr<Dispatcher>* new_dispatcher);
   MojoResult MapBuffer(uint64_t offset,
                        uint64_t num_bytes,
                        MojoMapBufferFlags flags,
                        scoped_ptr<RawSharedBufferMapping>* mapping);
 
   // Adds a waiter to this dispatcher. The waiter will be woken up when this
   // object changes state to satisfy |signals| with context |context|. It will
   // also be woken up when it becomes impossible for the object to ever satisfy
   // |signals| with a suitable error status.
@@ skipping 108 matching lines @@
   virtual MojoResult EndWriteDataImplNoLock(uint32_t num_bytes_written);
   virtual MojoResult ReadDataImplNoLock(UserPointer<void> elements,
                                         UserPointer<uint32_t> num_bytes,
                                         MojoReadDataFlags flags);
   virtual MojoResult BeginReadDataImplNoLock(
       UserPointer<const void*> buffer,
       UserPointer<uint32_t> buffer_num_bytes,
       MojoReadDataFlags flags);
   virtual MojoResult EndReadDataImplNoLock(uint32_t num_bytes_read);
   virtual MojoResult DuplicateBufferHandleImplNoLock(
-      const MojoDuplicateBufferHandleOptions* options,
+      UserPointer<const MojoDuplicateBufferHandleOptions> options,
       scoped_refptr<Dispatcher>* new_dispatcher);
   virtual MojoResult MapBufferImplNoLock(
       uint64_t offset,
       uint64_t num_bytes,
       MojoMapBufferFlags flags,
       scoped_ptr<RawSharedBufferMapping>* mapping);
   virtual MojoResult AddWaiterImplNoLock(Waiter* waiter,
                                          MojoHandleSignals signals,
                                          uint32_t context);
   virtual void RemoveWaiterImplNoLock(Waiter* waiter);
@@ skipping 120 matching lines @@
 
   Dispatcher* dispatcher_;
 
   // Copy and assign allowed.
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_SYSTEM_DISPATCHER_H_