Mojo: Implement MojoUnmapBuffer().

mojo/system/handle_table.cc

 // 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.
 
 #include "mojo/system/handle_table.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "mojo/system/constants.h"
 #include "mojo/system/dispatcher.h"
@@ skipping 163 matching lines @@
       DCHECK(entries[j]->busy);
       entries[j]->busy = false;
       (*transports)[j].End();
     }
     return error_result;
   }
 
   return MOJO_RESULT_OK;
 }
 
-
-//////////////
-
 MojoHandle HandleTable::AddDispatcherNoSizeCheck(
     const scoped_refptr<Dispatcher>& dispatcher) {
   DCHECK(dispatcher);
   DCHECK_LT(handle_to_entry_map_.size(), kMaxHandleTableSize);
   DCHECK_NE(next_handle_, MOJO_HANDLE_INVALID);
 
   // TODO(vtl): Maybe we want to do something different/smarter. (Or maybe try
   // assigning randomly?)
   while (handle_to_entry_map_.find(next_handle_) !=
              handle_to_entry_map_.end()) {
@@ skipping 34 matching lines @@
   for (uint32_t i = 0; i < num_handles; i++) {
     HandleToEntryMap::iterator it = handle_to_entry_map_.find(handles[i]);
     DCHECK(it != handle_to_entry_map_.end());
     DCHECK(it->second.busy);
     it->second.busy = false;
   }
 }
 
 }  // namespace system
 }  // namespace mojo