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

mojo/edk/system/message_pipe_dispatcher_unittest.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.
 
 // NOTE(vtl): Some of these tests are inherently flaky (e.g., if run on a
 // heavily-loaded system). Sorry. |test::EpsilonTimeout()| may be increased to
 // increase tolerance and reduce observed flakiness (though doing so reduces the
 // meaningfulness of the test).
 
 #include "mojo/edk/system/message_pipe_dispatcher.h"
@@ skipping 39 matching lines @@
         MessagePipeDispatcher::kDefaultCreateOptions);
     EXPECT_EQ(Dispatcher::Type::MESSAGE_PIPE, d0->GetType());
     auto d1 = MessagePipeDispatcher::Create(
         MessagePipeDispatcher::kDefaultCreateOptions);
     {
       auto mp = MessagePipe::CreateLocalLocal();
       d0->Init(mp.Clone(), i);         // 0, 1.
       d1->Init(std::move(mp), i ^ 1);  // 1, 0.
     }
     Waiter w;
-    uint32_t context = 0;
+    uint64_t context = 0;
     HandleSignalsState hss;
 
     // Try adding a writable waiter when already writable.
     w.Init();
     hss = HandleSignalsState();
     EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS,
               d0->AddAwakable(&w, MOJO_HANDLE_SIGNAL_WRITABLE, 0, &hss));
     EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, hss.satisfied_signals);
     EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE |
                   MOJO_HANDLE_SIGNAL_PEER_CLOSED,
@@ skipping 314 matching lines @@
 }
 
 TEST(MessagePipeDispatcherTest, BasicThreaded) {
   Stopwatch stopwatch;
   int32_t buffer[1];
   const uint32_t kBufferSize = static_cast<uint32_t>(sizeof(buffer));
   uint32_t buffer_size;
   MojoDeadline elapsed;
   bool did_wait;
   MojoResult result;
-  uint32_t context;
+  uint64_t context;
   HandleSignalsState hss;
 
   // Run this test both with |d0| as port 0, |d1| as port 1 and vice versa.
   for (unsigned i = 0; i < 2; i++) {
     auto d0 = MessagePipeDispatcher::Create(
         MessagePipeDispatcher::kDefaultCreateOptions);
     auto d1 = MessagePipeDispatcher::Create(
         MessagePipeDispatcher::kDefaultCreateOptions);
     {
       auto mp = MessagePipe::CreateLocalLocal();
@@ skipping 316 matching lines @@
   EXPECT_EQ(total_messages_written, total_messages_read);
   EXPECT_EQ(total_bytes_written, total_bytes_read);
 
   EXPECT_EQ(MOJO_RESULT_OK, d_write->Close());
   EXPECT_EQ(MOJO_RESULT_OK, d_read->Close());
 }
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo