EDK: Change Awakable::Awake()'s context, etc., to be a uint64_t.

mojo/edk/system/simple_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/edk/system/simple_dispatcher.h"
 
 #include "base/logging.h"
 
 namespace mojo {
 namespace system {
@@ skipping 10 matching lines @@
 }
 
 void SimpleDispatcher::CancelAllStateNoLock() {
   mutex().AssertHeld();
   awakable_list_.CancelAll();
 }
 
 MojoResult SimpleDispatcher::AddAwakableImplNoLock(
     Awakable* awakable,
     MojoHandleSignals signals,
-    uint32_t context,
+    uint64_t context,
     HandleSignalsState* signals_state) {
   mutex().AssertHeld();
 
   HandleSignalsState state(GetHandleSignalsStateImplNoLock());
   if (state.satisfies(signals)) {
     if (signals_state)
       *signals_state = state;
     return MOJO_RESULT_ALREADY_EXISTS;
   }
   if (!state.can_satisfy(signals)) {
@@ skipping 10 matching lines @@
     Awakable* awakable,
     HandleSignalsState* signals_state) {
   mutex().AssertHeld();
   awakable_list_.Remove(awakable);
   if (signals_state)
     *signals_state = GetHandleSignalsStateImplNoLock();
 }
 
 }  // namespace system
 }  // namespace mojo