Standardize usage of virtual/override/final in mojo/

mojo/public/cpp/utility/tests/run_loop_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.
 
 #include "mojo/public/cpp/utility/run_loop.h"
 
 #include <string>
 
 #include "mojo/public/cpp/system/core.h"
 #include "mojo/public/cpp/test_support/test_utils.h"
 #include "mojo/public/cpp/utility/run_loop_handler.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace {
 
 class TestRunLoopHandler : public RunLoopHandler {
  public:
   TestRunLoopHandler()
       : ready_count_(0),
         error_count_(0),
         last_error_result_(MOJO_RESULT_OK) {
   }
-  virtual ~TestRunLoopHandler() {}
+  ~TestRunLoopHandler() override {}
 
   void clear_ready_count() { ready_count_ = 0; }
   int ready_count() const { return ready_count_; }
 
   void clear_error_count() { error_count_ = 0; }
   int error_count() const { return error_count_; }
 
   MojoResult last_error_result() const { return last_error_result_; }
 
   // RunLoopHandler:
-  virtual void OnHandleReady(const Handle& handle) override { ready_count_++; }
-  virtual void OnHandleError(const Handle& handle, MojoResult result) override {
+  void OnHandleReady(const Handle& handle) override { ready_count_++; }
+  void OnHandleError(const Handle& handle, MojoResult result) override {
     error_count_++;
     last_error_result_ = result;
   }
 
  private:
   int ready_count_;
   int error_count_;
   MojoResult last_error_result_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(TestRunLoopHandler);
@@ skipping 19 matching lines @@
 // Trivial test to verify Run() with no added handles returns.
 TEST_F(RunLoopTest, ExitsWithNoHandles) {
   RunLoop run_loop;
   run_loop.Run();
 }
 
 class RemoveOnReadyRunLoopHandler : public TestRunLoopHandler {
  public:
   RemoveOnReadyRunLoopHandler() : run_loop_(NULL) {
   }
-  virtual ~RemoveOnReadyRunLoopHandler() {}
+  ~RemoveOnReadyRunLoopHandler() override {}
 
   void set_run_loop(RunLoop* run_loop) { run_loop_ = run_loop; }
 
   // RunLoopHandler:
-  virtual void OnHandleReady(const Handle& handle) override {
+  void OnHandleReady(const Handle& handle) override {
     run_loop_->RemoveHandler(handle);
     TestRunLoopHandler::OnHandleReady(handle);
   }
 
  private:
   RunLoop* run_loop_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(RemoveOnReadyRunLoopHandler);
 };
 
@@ skipping 10 matching lines @@
   run_loop.Run();
   EXPECT_EQ(1, handler.ready_count());
   EXPECT_EQ(0, handler.error_count());
   EXPECT_FALSE(run_loop.HasHandler(test_pipe.handle0.get()));
 }
 
 class QuitOnReadyRunLoopHandler : public TestRunLoopHandler {
  public:
   QuitOnReadyRunLoopHandler() : run_loop_(NULL) {
   }
-  virtual ~QuitOnReadyRunLoopHandler() {}
+  ~QuitOnReadyRunLoopHandler() override {}
 
   void set_run_loop(RunLoop* run_loop) { run_loop_ = run_loop; }
 
   // RunLoopHandler:
-  virtual void OnHandleReady(const Handle& handle) override {
+  void OnHandleReady(const Handle& handle) override {
     run_loop_->Quit();
     TestRunLoopHandler::OnHandleReady(handle);
   }
 
  private:
   RunLoop* run_loop_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(QuitOnReadyRunLoopHandler);
 };
 
@@ skipping 10 matching lines @@
   run_loop.Run();
   EXPECT_EQ(1, handler.ready_count());
   EXPECT_EQ(0, handler.error_count());
   EXPECT_TRUE(run_loop.HasHandler(test_pipe.handle0.get()));
 }
 
 class QuitOnErrorRunLoopHandler : public TestRunLoopHandler {
  public:
   QuitOnErrorRunLoopHandler() : run_loop_(NULL) {
   }
-  virtual ~QuitOnErrorRunLoopHandler() {}
+  ~QuitOnErrorRunLoopHandler() override {}
 
   void set_run_loop(RunLoop* run_loop) { run_loop_ = run_loop; }
 
   // RunLoopHandler:
-  virtual void OnHandleError(const Handle& handle, MojoResult result) override {
+  void OnHandleError(const Handle& handle, MojoResult result) override {
     run_loop_->Quit();
     TestRunLoopHandler::OnHandleError(handle, result);
   }
 
  private:
   RunLoop* run_loop_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(QuitOnErrorRunLoopHandler);
 };
 
@@ skipping 25 matching lines @@
                         MOJO_DEADLINE_INDEFINITE);
   }
   EXPECT_EQ(1, handler.error_count());
   EXPECT_EQ(MOJO_RESULT_ABORTED, handler.last_error_result());
 }
 
 class RemoveManyRunLoopHandler : public TestRunLoopHandler {
  public:
   RemoveManyRunLoopHandler() : run_loop_(NULL) {
   }
-  virtual ~RemoveManyRunLoopHandler() {}
+  ~RemoveManyRunLoopHandler() override {}
 
   void set_run_loop(RunLoop* run_loop) { run_loop_ = run_loop; }
   void add_handle(const Handle& handle) { handles_.push_back(handle); }
 
   // RunLoopHandler:
-  virtual void OnHandleError(const Handle& handle, MojoResult result) override {
+  void OnHandleError(const Handle& handle, MojoResult result) override {
     for (size_t i = 0; i < handles_.size(); i++)
       run_loop_->RemoveHandler(handles_[i]);
     TestRunLoopHandler::OnHandleError(handle, result);
   }
 
  private:
   std::vector<Handle> handles_;
   RunLoop* run_loop_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(RemoveManyRunLoopHandler);
@@ skipping 25 matching lines @@
   EXPECT_EQ(1, odd_handler.error_count());
   EXPECT_EQ(1, even_handler.error_count());
   EXPECT_EQ(MOJO_RESULT_ABORTED, odd_handler.last_error_result());
   EXPECT_EQ(MOJO_RESULT_ABORTED, even_handler.last_error_result());
 }
 
 class AddHandlerOnErrorHandler : public TestRunLoopHandler {
  public:
   AddHandlerOnErrorHandler() : run_loop_(NULL) {
   }
-  virtual ~AddHandlerOnErrorHandler() {}
+  ~AddHandlerOnErrorHandler() override {}
 
   void set_run_loop(RunLoop* run_loop) { run_loop_ = run_loop; }
 
   // RunLoopHandler:
-  virtual void OnHandleError(const Handle& handle, MojoResult result) override {
+  void OnHandleError(const Handle& handle, MojoResult result) override {
     run_loop_->AddHandler(this, handle,
                           MOJO_HANDLE_SIGNAL_READABLE,
                           MOJO_DEADLINE_INDEFINITE);
     TestRunLoopHandler::OnHandleError(handle, result);
   }
 
  private:
   RunLoop* run_loop_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(AddHandlerOnErrorHandler);
@@ skipping 27 matching lines @@
  public:
   static const size_t kDepthLimit;
   static const char kSignalMagic;
 
   NestingRunLoopHandler()
       : run_loop_(NULL),
         pipe_(NULL),
         depth_(0),
         reached_depth_limit_(false) {}
 
-  virtual ~NestingRunLoopHandler() {}
+  ~NestingRunLoopHandler() override {}
 
   void set_run_loop(RunLoop* run_loop) { run_loop_ = run_loop; }
   void set_pipe(MessagePipe* pipe) { pipe_ = pipe; }
   bool reached_depth_limit() const { return reached_depth_limit_; }
 
   // RunLoopHandler:
-  virtual void OnHandleReady(const Handle& handle) override {
+  void OnHandleReady(const Handle& handle) override {
     TestRunLoopHandler::OnHandleReady(handle);
     EXPECT_EQ(handle.value(), pipe_->handle0.get().value());
 
     ReadSignal();
     size_t current_depth = ++depth_;
     if (current_depth < kDepthLimit) {
       WriteSignal();
       run_loop_->Run();
       if (current_depth == kDepthLimit - 1) {
         // The topmost loop Quit()-ed, so its parent takes back the
@@ skipping 100 matching lines @@
   run_loop.AddHandler(&handler,
                       test_pipe.handle0.get(),
                       MOJO_HANDLE_SIGNAL_READABLE,
                       MOJO_DEADLINE_INDEFINITE);
   run_loop.PostDelayedTask(Closure(QuittingTask(&run_loop)), 0);
   run_loop.Run();
 }
 
 }  // namespace
 }  // namespace mojo