Mojo: MOJO_OVERRIDE -> override in mojo/.

mojo/public/cpp/system/tests/macros_unittest.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.
 
 // This file tests the C++ Mojo system macros and consists of "positive" tests,
 // i.e., those verifying that things work (without compile errors, or even
 // warnings if warnings are treated as errors).
 // TODO(vtl): Maybe rename "MacrosCppTest" -> "MacrosTest" if/when this gets
 // compiled into a different binary from the C API tests.
 // TODO(vtl): Fix no-compile tests (which are all disabled; crbug.com/105388)
@@ skipping 13 matching lines @@
 // Note: MSVS is very strict (and arguably buggy) about warnings for classes
 // defined in a local scope, so define these globally.
 struct TestOverrideBaseClass {
   virtual ~TestOverrideBaseClass() {}
   virtual void ToBeOverridden() {}
   virtual void AlsoToBeOverridden() = 0;
 };
 
 struct TestOverrideSubclass : public TestOverrideBaseClass {
   virtual ~TestOverrideSubclass() {}
-  virtual void ToBeOverridden() MOJO_OVERRIDE {}
-  virtual void AlsoToBeOverridden() MOJO_OVERRIDE {}
+  virtual void ToBeOverridden() override {}
+  virtual void AlsoToBeOverridden() override {}
 };
 
 TEST(MacrosCppTest, Override) {
   TestOverrideSubclass x;
   x.ToBeOverridden();
   x.AlsoToBeOverridden();
 }
 
 // Note: MSVS is very strict (and arguably buggy) about warnings for classes
 // defined in a local scope, so define these globally.
@@ skipping 70 matching lines @@
   EXPECT_FALSE(y.is_set());
   EXPECT_TRUE(z.is_set());
   EXPECT_EQ(123, z.value());
   z = z.Pass();
   EXPECT_TRUE(z.is_set());
   EXPECT_EQ(123, z.value());
 }
 
 }  // namespace
 }  // namespace mojo