Modernize coding style in core/html/forms/.

Source/core/html/forms/DateInputType.h

Index: Source/core/html/forms/DateInputType.h
diff --git a/Source/core/html/forms/DateInputType.h b/Source/core/html/forms/DateInputType.h
index cc2b188354184ee5da1407e0d402eb674585de5d..38002ce531509436d7675bec9462eda2f673991d 100644
--- a/Source/core/html/forms/DateInputType.h
+++ b/Source/core/html/forms/DateInputType.h
@@ -37,9 +37,9 @@
 namespace blink {
 
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
-typedef BaseMultipleFieldsDateAndTimeInputType BaseDateInputType;
+using BaseDateInputType = BaseMultipleFieldsDateAndTimeInputType;
 #else
-typedef BaseChooserOnlyDateAndTimeInputType BaseDateInputType;
+using BaseDateInputType = BaseChooserOnlyDateAndTimeInputType;
 #endif
 
 class DateInputType final : public BaseDateInputType {
@@ -48,18 +48,18 @@ public:
 
 private:
     DateInputType(HTMLInputElement&);
-    virtual void countUsage() override;
-    virtual const AtomicString& formControlType() const override;
-    virtual StepRange createStepRange(AnyStepHandling) const override;
-    virtual bool parseToDateComponentsInternal(const String&, DateComponents*) const override;
-    virtual bool setMillisecondToDateComponents(double, DateComponents*) const override;
-    virtual void warnIfValueIsInvalid(const String&) const override;
+    void countUsage() override;
+    const AtomicString& formControlType() const override;
+    StepRange createStepRange(AnyStepHandling) const override;
+    bool parseToDateComponentsInternal(const String&, DateComponents*) const override;
+    bool setMillisecondToDateComponents(double, DateComponents*) const override;
+    void warnIfValueIsInvalid(const String&) const override;
 
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
     // BaseMultipleFieldsDateAndTimeInputType functions
-    virtual String formatDateTimeFieldsState(const DateTimeFieldsState&) const override;
-    virtual void setupLayoutParameters(DateTimeEditElement::LayoutParameters&, const DateComponents&) const override;
-    virtual bool isValidFormat(bool hasYear, bool hasMonth, bool hasWeek, bool hasDay, bool hasAMPM, bool hasHour, bool hasMinute, bool hasSecond) const override;
+    String formatDateTimeFieldsState(const DateTimeFieldsState&) const override;
+    void setupLayoutParameters(DateTimeEditElement::LayoutParameters&, const DateComponents&) const override;
+    bool isValidFormat(bool hasYear, bool hasMonth, bool hasWeek, bool hasDay, bool hasAMPM, bool hasHour, bool hasMinute, bool hasSecond) const override;
 #endif
 };