Use native theme colors for textfields; etc.

ui/native_theme/native_theme.cc

Index: ui/native_theme/native_theme.cc
diff --git a/ui/native_theme/native_theme.cc b/ui/native_theme/native_theme.cc
index 6bc7a93ba835f52584ef2c560e0afee9f6d5d020..374718b7fd9205743e5f86e2723db3a4ba8a71a8 100644
--- a/ui/native_theme/native_theme.cc
+++ b/ui/native_theme/native_theme.cc
@@ -29,9 +29,14 @@ bool NativeTheme::IsNewMenuStyleEnabled() {
 }
 
 NativeTheme::NativeTheme()
-    : thumb_inactive_color_(0xeaeaea),
+    : ALLOW_THIS_IN_INITIALIZER_LIST(color_change_listener_(this)),
+      thumb_inactive_color_(0xeaeaea),
       thumb_active_color_(0xf4f4f4),
       track_color_(0xd3d3d3) {
 }
 
+NativeTheme::~NativeTheme() {}
+
+void NativeTheme::OnSysColorChange() {}
+
 }  // namespace ui