Standardize usage of virtual/override/final in mojo/

mojo/services/network/main.cc

Index: mojo/services/network/main.cc
diff --git a/mojo/services/network/main.cc b/mojo/services/network/main.cc
index 27c0d85c64fe82def6d1937afbbcf5fb029d8ad6..182ddf573a54279958270cfc9a661e6fdf2cdc6d 100644
--- a/mojo/services/network/main.cc
+++ b/mojo/services/network/main.cc
@@ -22,7 +22,7 @@ class Delegate : public mojo::ApplicationDelegate,
  public:
   Delegate() {}
 
-  virtual void Initialize(mojo::ApplicationImpl* app) override {
+  void Initialize(mojo::ApplicationImpl* app) override {
     base::FilePath base_path;
     CHECK(PathService::Get(base::DIR_TEMP, &base_path));
     base_path = base_path.Append(FILE_PATH_LITERAL("network_service"));
@@ -30,7 +30,7 @@ class Delegate : public mojo::ApplicationDelegate,
   }
 
   // mojo::ApplicationDelegate implementation.
-  virtual bool ConfigureIncomingConnection(
+  bool ConfigureIncomingConnection(
       mojo::ApplicationConnection* connection) override {
     DCHECK(context_);
     connection->AddService(this);
@@ -38,9 +38,8 @@ class Delegate : public mojo::ApplicationDelegate,
   }
 
   // mojo::InterfaceFactory<mojo::NetworkService> implementation.
-  virtual void Create(
-      mojo::ApplicationConnection* connection,
-      mojo::InterfaceRequest<mojo::NetworkService> request) override {
+  void Create(mojo::ApplicationConnection* connection,
+              mojo::InterfaceRequest<mojo::NetworkService> request) override {
     mojo::BindToRequest(
         new mojo::NetworkServiceImpl(connection, context_.get()), &request);
   }