Revert of Standardize usage of virtual/override/final in ipc/

ipc/ipc_channel_proxy_unittest.cc

Index: ipc/ipc_channel_proxy_unittest.cc
diff --git a/ipc/ipc_channel_proxy_unittest.cc b/ipc/ipc_channel_proxy_unittest.cc
index 848367ec782bd2e481d7b3deba85b8b916ae09a0..9042f44d3f7ee96a5e808d07106a9c562072b1fb 100644
--- a/ipc/ipc_channel_proxy_unittest.cc
+++ b/ipc/ipc_channel_proxy_unittest.cc
@@ -47,9 +47,9 @@
 class QuitListener : public IPC::Listener {
  public:
   QuitListener() : bad_message_received_(false) {}
-  ~QuitListener() override {}
-
-  bool OnMessageReceived(const IPC::Message& message) override {
+  virtual ~QuitListener() {}
+
+  virtual bool OnMessageReceived(const IPC::Message& message) override {
     IPC_BEGIN_MESSAGE_MAP(QuitListener, message)
       IPC_MESSAGE_HANDLER(WorkerMsg_Quit, OnQuit)
       IPC_MESSAGE_HANDLER(TestMsg_BadMessage, OnBadMessage)
@@ -57,7 +57,7 @@
     return true;
   }
 
-  void OnBadMessageReceived(const IPC::Message& message) override {
+  virtual void OnBadMessageReceived(const IPC::Message& message) override {
     bad_message_received_ = true;
   }
 
@@ -76,14 +76,14 @@
 class ChannelReflectorListener : public IPC::Listener {
  public:
   ChannelReflectorListener() : channel_(NULL) {}
-  ~ChannelReflectorListener() override {}
+  virtual ~ChannelReflectorListener() {}
 
   void Init(IPC::Channel* channel) {
     DCHECK(!channel_);
     channel_ = channel;
   }
 
-  bool OnMessageReceived(const IPC::Message& message) override {
+  virtual bool OnMessageReceived(const IPC::Message& message) override {
     IPC_BEGIN_MESSAGE_MAP(ChannelReflectorListener, message)
       IPC_MESSAGE_HANDLER(TestMsg_Bounce, OnTestBounce)
       IPC_MESSAGE_HANDLER(TestMsg_SendBadMessage, OnSendBadMessage)
@@ -143,24 +143,24 @@
         last_filter_event_(NONE),
         message_filtering_enabled_(false) {}
 
-  void OnFilterAdded(IPC::Sender* sender) override {
+  virtual void OnFilterAdded(IPC::Sender* sender) override {
     EXPECT_TRUE(sender);
     EXPECT_EQ(NONE, last_filter_event_);
     last_filter_event_ = FILTER_ADDED;
   }
 
-  void OnChannelConnected(int32_t peer_pid) override {
+  virtual void OnChannelConnected(int32_t peer_pid) override {
     EXPECT_EQ(FILTER_ADDED, last_filter_event_);
     EXPECT_NE(static_cast<int32_t>(base::kNullProcessId), peer_pid);
     last_filter_event_ = CHANNEL_CONNECTED;
   }
 
-  void OnChannelError() override {
+  virtual void OnChannelError() override {
     EXPECT_EQ(CHANNEL_CONNECTED, last_filter_event_);
     last_filter_event_ = CHANNEL_ERROR;
   }
 
-  void OnChannelClosing() override {
+  virtual void OnChannelClosing() override {
     // We may or may not have gotten OnChannelError; if not, the last event has
     // to be OnChannelConnected.
     if (last_filter_event_ != CHANNEL_ERROR)
@@ -168,7 +168,7 @@
     last_filter_event_ = CHANNEL_CLOSING;
   }
 
-  void OnFilterRemoved() override {
+  virtual void OnFilterRemoved() override {
     // If the channel didn't get a chance to connect, we might see the
     // OnFilterRemoved event with no other events preceding it. We still want
     // OnFilterRemoved to be called to allow for deleting the Filter.
@@ -177,7 +177,7 @@
     last_filter_event_ = FILTER_REMOVED;
   }
 
-  bool OnMessageReceived(const IPC::Message& message) override {
+  virtual bool OnMessageReceived(const IPC::Message& message) override {
     // We should always get the OnFilterAdded and OnChannelConnected events
     // prior to any messages.
     EXPECT_EQ(CHANNEL_CONNECTED, last_filter_event_);
@@ -203,7 +203,7 @@
     CHECK(false);
   }
 
-  bool GetSupportedMessageClasses(
+  virtual bool GetSupportedMessageClasses(
       std::vector<uint32>* supported_message_classes) const override {
     if (is_global_filter_)
       return false;
@@ -219,7 +219,7 @@
   FilterEvent last_filter_event() const { return last_filter_event_; }
 
  private:
-  ~MessageCountFilter() override {}
+  virtual ~MessageCountFilter() {}
 
   size_t messages_received_;
   uint32 supported_message_class_;