Automatically call OnNativeThemeChanged when a widget is added to a hierarchy

ui/views/controls/textfield/textfield.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 
 #include "base/debug/trace_event.h"
 #include "grit/ui_strings.h"
@@ skipping 831 matching lines @@
   OnCaretBoundsChanged();
 }
 
 void Textfield::OnEnabledChanged() {
   View::OnEnabledChanged();
   if (GetInputMethod())
     GetInputMethod()->OnTextInputTypeChanged(this);
   SchedulePaint();
 }
 
-void Textfield::ViewHierarchyChanged(
-    const ViewHierarchyChangedDetails& details) {
-  if (details.is_add && details.child == this)
-    UpdateColorsFromTheme(GetNativeTheme());
-}
-
 void Textfield::OnPaint(gfx::Canvas* canvas) {
   OnPaintBackground(canvas);
   PaintTextAndCursor(canvas);
   OnPaintBorder(canvas);
   if (NativeViewHost::kRenderNativeControlFocus)
     Painter::PaintFocusPainter(this, canvas, focus_painter_.get());
 }
 
 void Textfield::OnFocus() {
   GetRenderText()->set_focused(true);
@@ skipping 26 matching lines @@
 
   // Border typically draws focus indicator.
   SchedulePaint();
 }
 
 gfx::Point Textfield::GetKeyboardContextMenuLocation() {
   return GetCaretBounds().bottom_right();
 }
 
 void Textfield::OnNativeThemeChanged(const ui::NativeTheme* theme) {
-  UpdateColorsFromTheme(theme);
+  gfx::RenderText* render_text = GetRenderText();
+  render_text->SetColor(GetTextColor());
+  UpdateBackgroundColor();
+  render_text->set_cursor_color(GetTextColor());
+  render_text->set_selection_color(theme->GetSystemColor(
+      ui::NativeTheme::kColorId_TextfieldSelectionColor));
+  render_text->set_selection_background_focused_color(theme->GetSystemColor(
+      ui::NativeTheme::kColorId_TextfieldSelectionBackgroundFocused));
+
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Textfield, TextfieldModel::Delegate overrides:
 
 void Textfield::OnCompositionTextConfirmedOrCleared() {
   if (!skip_input_method_cancel_composition_)
     GetInputMethod()->CancelComposition(this);
 }
 
@@ skipping 545 matching lines @@
   }
 }
 
 void Textfield::UpdateBackgroundColor() {
   const SkColor color = GetBackgroundColor();
   set_background(Background::CreateSolidBackground(color));
   GetRenderText()->set_background_is_transparent(SkColorGetA(color) != 0xFF);
   SchedulePaint();
 }
 
-void Textfield::UpdateColorsFromTheme(const ui::NativeTheme* theme) {
-  gfx::RenderText* render_text = GetRenderText();
-  render_text->SetColor(GetTextColor());
-  UpdateBackgroundColor();
-  render_text->set_cursor_color(GetTextColor());
-  render_text->set_selection_color(theme->GetSystemColor(
-      ui::NativeTheme::kColorId_TextfieldSelectionColor));
-  render_text->set_selection_background_focused_color(theme->GetSystemColor(
-      ui::NativeTheme::kColorId_TextfieldSelectionBackgroundFocused));
-}
-
 void Textfield::UpdateAfterChange(bool text_changed, bool cursor_changed) {
   if (text_changed) {
     if (controller_)
       controller_->ContentsChanged(this, text());
     NotifyAccessibilityEvent(ui::AX_EVENT_TEXT_CHANGED, true);
   }
   if (cursor_changed) {
     cursor_visible_ = true;
     RepaintCursor();
     if (cursor_repaint_timer_.IsRunning())
@@ skipping 189 matching lines @@
       const size_t length = selection_clipboard_text.length();
       range = gfx::Range(range.start() + length, range.end() + length);
     }
     model_->MoveCursorTo(gfx::SelectionModel(range, affinity));
     UpdateAfterChange(true, true);
     OnAfterUserAction();
   }
 }
 
 }  // namespace views