ui: Move NativeTheme files into ui/base/native_theme/ directory.

ui/views/controls/textfield/textfield_views_model.cc

Index: ui/views/controls/textfield/textfield_views_model.cc
diff --git a/ui/views/controls/textfield/textfield_views_model.cc b/ui/views/controls/textfield/textfield_views_model.cc
index a931a16468d92b49fee327ed527cc3a4392bc64b..6d8dd76a4f91906b199b8858f9c2c22167c5cdcc 100644
--- a/ui/views/controls/textfield/textfield_views_model.cc
+++ b/ui/views/controls/textfield/textfield_views_model.cc
@@ -16,7 +16,7 @@
 #include "ui/base/text/utf16_indexing.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/font.h"
-#include "ui/gfx/native_theme.h"
+#include "ui/base/native_theme/native_theme.h"
 #include "ui/gfx/render_text.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/views_delegate.h"
@@ -284,16 +284,16 @@ TextfieldViewsModel::TextfieldViewsModel(Delegate* delegate)
     : delegate_(delegate),
       render_text_(gfx::RenderText::CreateRenderText()),
       current_edit_(edit_history_.end()) {
-  const gfx::NativeTheme* theme = gfx::NativeTheme::instance();
+  const ui::NativeTheme* theme = ui::NativeTheme::instance();
   render_text_->set_selection_color(
       theme->GetSystemColor(
-          gfx::NativeTheme::kColorId_TextfieldSelectionColor));
+          ui::NativeTheme::kColorId_TextfieldSelectionColor));
   render_text_->set_selection_background_focused_color(
       theme->GetSystemColor(
-          gfx::NativeTheme::kColorId_TextfieldSelectionBackgroundFocused));
+          ui::NativeTheme::kColorId_TextfieldSelectionBackgroundFocused));
   render_text_->set_selection_background_unfocused_color(
       theme->GetSystemColor(
-          gfx::NativeTheme::kColorId_TextfieldSelectionBackgroundUnfocused));
+          ui::NativeTheme::kColorId_TextfieldSelectionBackgroundUnfocused));
 }
 
 TextfieldViewsModel::~TextfieldViewsModel() {