[Bindings] Reformat template files for Interface (1/4)

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

 {% filter format_blink_cpp_source_code %}
 
 {% include 'copyright_block.txt' %}
 #ifndef {{v8_class}}_h
 #define {{v8_class}}_h
 
 {% for filename in header_includes %}
 #include "{{filename}}"
 {% endfor %}
 
 namespace blink {
 
 class {{v8_class}} final : public {{cpp_class}}, public ActiveDOMCallback {
-    USING_GARBAGE_COLLECTED_MIXIN({{v8_class}});
-public:
-    static {{v8_class}}* create(v8::Local<v8::Function> callback, ScriptState* scriptState)
-    {
-        return new {{v8_class}}(callback, scriptState);
-    }
+  USING_GARBAGE_COLLECTED_MIXIN({{v8_class}});
+ public:
+  static {{v8_class}}* create(v8::Local<v8::Function> callback, ScriptState* scriptState) {
+    return new {{v8_class}}(callback, scriptState);
+  }
 
-    ~{{v8_class}}() override;
+  ~{{v8_class}}() override;
 
-    DECLARE_VIRTUAL_TRACE();
+  DECLARE_VIRTUAL_TRACE();
 
 {% for method in methods %}
-    {{method.cpp_type}} {{method.name}}({{method.argument_declarations | join(', ')}}) override;
+  {{method.cpp_type}} {{method.name}}({{method.argument_declarations | join(', ')}}) override;
 {% endfor %}
-private:
-    {{exported}}{{v8_class}}(v8::Local<v8::Function>, ScriptState*);
+ private:
+  {{exported}}{{v8_class}}(v8::Local<v8::Function>, ScriptState*);
 
-    ScopedPersistent<v8::Function> m_callback;
-    RefPtr<ScriptState> m_scriptState;
+  ScopedPersistent<v8::Function> m_callback;
+  RefPtr<ScriptState> m_scriptState;
 };
 
 }
-#endif // {{v8_class}}_h
+#endif  // {{v8_class}}_h
 
 {% endfilter %}{# format_blink_cpp_source_code #}