"typedef Foo Bar" -> "using Bar = Foo" in //mojo/edk/....

mojo/edk/system/core_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.
 
 #include "mojo/edk/system/core.h"
 
 #include <stdint.h>
 
 #include <limits>
 
 #include "base/bind.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "mojo/edk/system/awakable.h"
 #include "mojo/edk/system/core_test_base.h"
 
 namespace mojo {
 namespace system {
 namespace {
 
 const MojoHandleSignalsState kEmptyMojoHandleSignalsState = {0u, 0u};
 const MojoHandleSignalsState kFullMojoHandleSignalsState = {~0u, ~0u};
 const MojoHandleSignals kAllSignals = MOJO_HANDLE_SIGNAL_READABLE |
                                       MOJO_HANDLE_SIGNAL_WRITABLE |
                                       MOJO_HANDLE_SIGNAL_PEER_CLOSED;
 
-typedef test::CoreTestBase CoreTest;
+using CoreTest = test::CoreTestBase;
 
 TEST_F(CoreTest, GetTimeTicksNow) {
   const MojoTimeTicks start = core()->GetTimeTicksNow();
   EXPECT_NE(static_cast<MojoTimeTicks>(0), start)
       << "GetTimeTicksNow should return nonzero value";
   base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(15));
   const MojoTimeTicks finish = core()->GetTimeTicksNow();
   // Allow for some fuzz in sleep.
   EXPECT_GE((finish - start), static_cast<MojoTimeTicks>(8000))
       << "Sleeping should result in increasing time ticks";
@@ skipping 1270 matching lines @@
   EXPECT_EQ(MOJO_RESULT_BUSY, waiter.result);
 
   EXPECT_EQ(MOJO_RESULT_OK, core()->Close(h));
 }
 
 // TODO(vtl): Test |DuplicateBufferHandle()| and |MapBuffer()|.
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo