Standardize usage of virtual/override/final in ipc/

The Google C++ style guide states:

  Explicitly annotate overrides of virtual functions or virtual
  destructors with an override or (less frequently) final specifier.
  Older (pre-C++11) code will use the virtual keyword as an inferior
  alternative annotation. For clarity, use exactly one of override,
  final, or virtual when declaring an override.

To better conform to these guidelines, the following constructs have
been rewritten:

- if a base class has a virtual destructor, then:
    virtual ~Foo();                   ->  ~Foo() override;
- virtual void Foo() override;        ->  void Foo() override;
- virtual void Foo() override final;  ->  void Foo() final;

This patch was automatically generated. The clang plugin can generate
fixit hints, which are suggested edits when it is 100% sure it knows how
to fix a problem. The hints from the clang plugin were applied to the
source tree using the tool in https://codereview.chromium.org/598073004.

Several formatting edits by clang-format were manually reverted, due to
mangling of some of the more complicate IPC macros.

BUG=417463
R=agl@chromium.org

Review URL: https://codereview.chromium.org/666493005

Cr-Commit-Position: refs/heads/master@{#300623}

1 files changed, 6 insertions, 6 deletions

diff --git a/ipc/ipc_channel_proxy.h b/ipc/ipc_channel_proxy.h
index 84abc65..71a014b 100644
--- a/ipc/ipc_channel_proxy.h
+++ b/ipc/ipc_channel_proxy.h
@@ -76,7 +76,7 @@ class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe {
       Listener* listener,
       const scoped_refptr<base::SingleThreadTaskRunner>& ipc_task_runner);
 
-  virtual ~ChannelProxy();
+  ~ChannelProxy() override;
 
   // Initializes the channel proxy. Only call this once to initialize a channel
   // proxy that was not initialized in its constructor. If create_pipe_now is
@@ -98,7 +98,7 @@ class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe {
 
   // Send a message asynchronously.  The message is routed to the background
   // thread where it is passed to the IPC::Channel's Send method.
-  virtual bool Send(Message* message) override;
+  bool Send(Message* message) override;
 
   // Used to intercept messages as they are received on the background thread.
   //
@@ -152,12 +152,12 @@ class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe {
 
    protected:
     friend class base::RefCountedThreadSafe<Context>;
-    virtual ~Context();
+    ~Context() override;
 
     // IPC::Listener methods:
-    virtual bool OnMessageReceived(const Message& message) override;
-    virtual void OnChannelConnected(int32 peer_pid) override;
-    virtual void OnChannelError() override;
+    bool OnMessageReceived(const Message& message) override;
+    void OnChannelConnected(int32 peer_pid) override;
+    void OnChannelError() override;
 
     // Like OnMessageReceived but doesn't try the filters.
     bool OnMessageReceivedNoFilter(const Message& message);