Standardize usage of virtual/override/final in content/renderer/

content/renderer/pepper/plugin_object.h

Index: content/renderer/pepper/plugin_object.h
diff --git a/content/renderer/pepper/plugin_object.h b/content/renderer/pepper/plugin_object.h
index 32860a6591b9a29a400760f2291c944c88d4d123..4dec6205d5830f14d31d0b2a93de95f291716e62 100644
--- a/content/renderer/pepper/plugin_object.h
+++ b/content/renderer/pepper/plugin_object.h
@@ -32,7 +32,7 @@ class PluginObject : public gin::Wrappable<PluginObject>,
  public:
   static gin::WrapperInfo kWrapperInfo;
 
-  virtual ~PluginObject();
+  ~PluginObject() override;
 
   // Returns the PluginObject which is contained in the given v8 object, or NULL
   // if the object isn't backed by a PluginObject.
@@ -46,13 +46,12 @@ class PluginObject : public gin::Wrappable<PluginObject>,
                        void* ppp_class_data);
 
   // gin::NamedPropertyInterceptor
-  virtual v8::Local<v8::Value> GetNamedProperty(
-      v8::Isolate* isolate,
-      const std::string& property) override;
-  virtual bool SetNamedProperty(v8::Isolate* isolate,
-                                const std::string& property,
-                                v8::Local<v8::Value> value) override;
-  virtual std::vector<std::string> EnumerateNamedProperties(
+  v8::Local<v8::Value> GetNamedProperty(v8::Isolate* isolate,
+                                        const std::string& property) override;
+  bool SetNamedProperty(v8::Isolate* isolate,
+                        const std::string& property,
+                        v8::Local<v8::Value> value) override;
+  std::vector<std::string> EnumerateNamedProperties(
       v8::Isolate* isolate) override;
 
   const PPP_Class_Deprecated* ppp_class() { return ppp_class_; }
@@ -67,7 +66,7 @@ class PluginObject : public gin::Wrappable<PluginObject>,
                void* ppp_class_data);
 
   // gin::Wrappable
-  virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
+  gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
       v8::Isolate* isolate) override;
 
   // Helper method to get named properties.