Make generated Callback bindings classes FINAL

Make generated Callback bindings classes FINAL and add OVERRIDE to their virtual
methods.

R=haraken
BUG=333316

Review URL: https://codereview.chromium.org/138613002

git-svn-id: svn://svn.chromium.org/blink/trunk@165111 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/bindings/scripts/code_generator_v8.pm

@@ -4877,7 +4877,7 @@ sub GenerateCallbackHeader
         $header{includes}->add("#include \"$include\"\n");
     }
     $header{nameSpaceWebCore}->addHeader("\nclass ExecutionContext;\n");
-    $header{class}->addHeader("class $v8ClassName : public $implClassName, public ActiveDOMCallback {");
+    $header{class}->addHeader("class $v8ClassName FINAL : public $implClassName, public ActiveDOMCallback {");
     $header{class}->addFooter("};\n");
 
     $header{classPublic}->add(<<END);
@@ -4906,7 +4906,7 @@ END
                 push(@args, GetNativeTypeForCallbacks($param->type) . " " . $param->name);
             }
             $code .= join(", ", @args);
-            $code .= ");\n";
+            $code .= ") OVERRIDE;\n";
             $header{classPublic}->add($code);
         }
     }

third_party/WebKit/Source/bindings/templates/callback_interface.h

@@ -44,7 +44,7 @@ namespace WebCore {
 
 class ExecutionContext;
 
-class {{v8_class}} : public {{cpp_class}}, public ActiveDOMCallback {
+class {{v8_class}} FINAL : public {{cpp_class}}, public ActiveDOMCallback {
 public:
     static PassOwnPtr<{{v8_class}}> create(v8::Handle<v8::Function> callback, ExecutionContext* context)
     {
@@ -55,7 +55,7 @@ public:
     virtual ~{{v8_class}}();
 
 {% for method in methods %}
-    virtual {{method.return_cpp_type}} {{method.name}}({{method.argument_declarations | join(', ')}});
+    virtual {{method.return_cpp_type}} {{method.name}}({{method.argument_declarations | join(', ')}}) OVERRIDE;
 {% endfor %}
 private:
     {{v8_class}}(v8::Handle<v8::Function>, ExecutionContext*);

third_party/WebKit/Source/bindings/tests/results/V8TestCallbackInterface.h

@@ -42,7 +42,7 @@ namespace WebCore {
 
 class ExecutionContext;
 
-class V8TestCallbackInterface : public TestCallbackInterface, public ActiveDOMCallback {
+class V8TestCallbackInterface FINAL : public TestCallbackInterface, public ActiveDOMCallback {
 public:
     static PassOwnPtr<V8TestCallbackInterface> create(v8::Handle<v8::Function> callback, ExecutionContext* context)
     {
@@ -52,15 +52,15 @@ public:
 
     virtual ~V8TestCallbackInterface();
 
-    virtual void voidMethod();
-    virtual bool booleanMethod();
-    virtual void voidMethodBooleanArg(bool boolArg);
-    virtual void voidMethodSequenceArg(const Vector<RefPtr<TestInterfaceEmpty> >& sequenceArg);
-    virtual void voidMethodFloatArg(float floatArg);
-    virtual void voidMethodTestInterfaceEmptyArg(TestInterfaceEmpty* testInterfaceEmptyArg);
-    virtual void voidMethodTestInterfaceEmptyStringArg(TestInterfaceEmpty* testInterfaceEmptyArg, const String& stringArg);
-    virtual void callbackWithThisValueVoidMethodStringArg(ScriptValue thisValue, const String& stringArg);
-    virtual void customVoidMethodTestInterfaceEmptyArg(TestInterfaceEmpty* testInterfaceEmptyArg);
+    virtual void voidMethod() OVERRIDE;
+    virtual bool booleanMethod() OVERRIDE;
+    virtual void voidMethodBooleanArg(bool boolArg) OVERRIDE;
+    virtual void voidMethodSequenceArg(const Vector<RefPtr<TestInterfaceEmpty> >& sequenceArg) OVERRIDE;
+    virtual void voidMethodFloatArg(float floatArg) OVERRIDE;
+    virtual void voidMethodTestInterfaceEmptyArg(TestInterfaceEmpty* testInterfaceEmptyArg) OVERRIDE;
+    virtual void voidMethodTestInterfaceEmptyStringArg(TestInterfaceEmpty* testInterfaceEmptyArg, const String& stringArg) OVERRIDE;
+    virtual void callbackWithThisValueVoidMethodStringArg(ScriptValue thisValue, const String& stringArg) OVERRIDE;
+    virtual void customVoidMethodTestInterfaceEmptyArg(TestInterfaceEmpty* testInterfaceEmptyArg) OVERRIDE;
 private:
     V8TestCallbackInterface(v8::Handle<v8::Function>, ExecutionContext*);