Clean up some NativeTheme code.

ui/native_theme/native_theme_dark_aura.cc

Index: ui/native_theme/native_theme_dark_aura.cc
diff --git a/ui/native_theme/native_theme_dark_aura.cc b/ui/native_theme/native_theme_dark_aura.cc
index f40f64c654bd48061b9941c4b791d450a093a2c8..35906316913e053ed0b704a33ed163b7de221db8 100644
--- a/ui/native_theme/native_theme_dark_aura.cc
+++ b/ui/native_theme/native_theme_dark_aura.cc
@@ -151,7 +151,7 @@ SkColor NativeThemeDarkAura::GetSystemColor(ColorId color_id) const {
   return gfx::kPlaceholderColor;
 }
 
-NativeThemeDarkAura::NativeThemeDarkAura() {}
+NativeThemeDarkAura::NativeThemeDarkAura() : NativeThemeAura(false) {}

[bokan, 2016/11/06 23:37:24]

The dark theme is used in incognito, right? We should still use overlays there
if they're set in non-incognito.

[Evan Stade, 2016/11/07 00:40:43]

it's never used by blink

[bokan, 2016/11/07 12:28:11]

Acknowledged.

 
 NativeThemeDarkAura::~NativeThemeDarkAura() {}