EDK: Replace HandleTable::GetDispatcher() with GetHandle().

mojo/edk/system/handle_table.h

 // Copyright 2014 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_EDK_SYSTEM_HANDLE_TABLE_H_
 #define MOJO_EDK_SYSTEM_HANDLE_TABLE_H_
 
 #include <stddef.h>
 
 #include <unordered_map>
@@ skipping 31 matching lines @@
 class HandleTable {
  public:
   explicit HandleTable(size_t max_handle_table_size);
   ~HandleTable();
 
   // TODO(vtl): Replace the dispatcher-only methods with ones that either take a
   // handle, or ones that deal in dispatchers *and* rights. (E.g., it might be
   // convenient for there to be a "GetDispatcher()" that automatically does
   // rights-checking.)
 
-  // On success, gets the dispatcher for a given handle value (which should not
-  // be |MOJO_HANDLE_INVALID|). On failure, returns an appropriate result (and
-  // leaves |dispatcher| alone), namely |MOJO_RESULT_INVALID_ARGUMENT| if
-  // there's no dispatcher for the given handle value or |MOJO_RESULT_BUSY| if
-  // the handle value is marked as busy.
-  MojoResult GetDispatcher(MojoHandle handle_value,
-                           util::RefPtr<Dispatcher>* dispatcher);
+  // On success, gets the handle for the given handle value (which should not be
+  // |MOJO_HANDLE_INVALID|). On failure, returns an appropriate result (and
+  // leaves |*handle| alone), namely |MOJO_RESULT_INVALID_ARGUMENT| if there's
+  // no handle for the given handle value or |MOJO_RESULT_BUSY| if the handle is
+  // marked as busy.
+  MojoResult GetHandle(MojoHandle handle_value, Handle* handle);
 
   // Like |GetDispatcher()|, but on success also removes the handle value from
   // the handle table.
   MojoResult GetAndRemoveDispatcher(MojoHandle handle_value,
                                     util::RefPtr<Dispatcher>* dispatcher);
 
   // Adds a handle (which must have a dispatcher), returning the handle value
   // for it. Returns |MOJO_HANDLE_INVALID| on failure (if the handle table is
   // full).
   MojoHandle AddHandle(Handle&& handle);
@@ skipping 75 matching lines @@
   HandleToEntryMap handle_to_entry_map_;
   MojoHandle next_handle_value_;  // Invariant: never |MOJO_HANDLE_INVALID|.
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(HandleTable);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_HANDLE_TABLE_H_