ipc: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

ipc/mojo/async_handle_waiter_unittest.cc

 // Copyright 2015 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 "ipc/mojo/async_handle_waiter.h"
 
 #include "base/bind.h"
-#include "base/message_loop/message_loop.h"
+#include "base/location.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/mojo/src/mojo/public/cpp/system/message_pipe.h"
 
 namespace IPC {
 namespace internal {
 namespace {
 
 void ReadOneByteOfX(MojoHandle pipe) {
   uint32_t size = 1;
@@ skipping 31 matching lines @@
     run_loop_.reset(new base::RunLoop());
   }
 
   void WriteToPipe() {
     MojoResult rv = MojoWriteMessage(pipe_to_write_.get().value(), "X", 1,
                                      nullptr, 0, MOJO_WRITE_MESSAGE_FLAG_NONE);
     CHECK_EQ(rv, MOJO_RESULT_OK);
   }
 
   void WriteToPipeFromWorker() {
-    worker_.message_loop_proxy()->PostTask(
+    worker_.task_runner()->PostTask(
         FROM_HERE, base::Bind(&AsyncHandleWaiterTest::WriteToPipe,
                               base::Unretained(this)));
   }
 
   void WaitAndAssertSignaledAndMessageIsArrived() {
     run_loop_->Run();
     EXPECT_EQ(MOJO_RESULT_OK, signaled_result_);
 
     ReadOneByteOfX(pipe_to_read_.get().value());
   }
@@ skipping 175 matching lines @@
   target_->GetIOObserverForTest()->DidProcessIOEvent();
   EXPECT_EQ(0U, invocation_count_);
 
   target_->GetIOObserverForTest()->DidProcessIOEvent();
   EXPECT_EQ(1U, invocation_count_);
 }
 
 }  // namespace
 }  // namespace internal
 }  // namespace IPC