Automatically call OnNativeThemeChanged when a widget is added to a hierarchy

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index 2bfb6a7323bf658e1287783dfeb8aefd8a0442b8..d32cacebef88b26f951e4cefdce215f860c98e25 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -202,8 +202,6 @@ class VIEWS_EXPORT Textfield : public View,
   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
   virtual void OnEnabledChanged() OVERRIDE;
-  virtual void ViewHierarchyChanged(
-      const ViewHierarchyChangedDetails& details) OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void OnBlur() OVERRIDE;
@@ -300,9 +298,6 @@ class VIEWS_EXPORT Textfield : public View,
   // Updates the painted background color.
   void UpdateBackgroundColor();
 
-  // Updates any colors that have not been explicitly set from the theme.
-  void UpdateColorsFromTheme(const ui::NativeTheme* theme);
-
   // Does necessary updates when the text and/or cursor position changes.
   void UpdateAfterChange(bool text_changed, bool cursor_changed);