Themable volume and power dialogs

Test: visual
Bug: 63903361
Change-Id: I3e4dc74e960f212985712120341d3a80543c96db
diff --git a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java
index 7e9c865..9e50e81 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java
@@ -53,6 +53,7 @@
 import android.util.Log;
 import android.util.Slog;
 import android.util.SparseBooleanArray;
+import android.view.ContextThemeWrapper;
 import android.view.Gravity;
 import android.view.MotionEvent;
 import android.view.View;
@@ -151,7 +152,7 @@
     private TunerZenModePanel mZenPanel;
 
     public VolumeDialogImpl(Context context) {
-        mContext = context;
+        mContext = new ContextThemeWrapper(context, com.android.systemui.R.style.qs_theme);
         mZenModeController = Dependency.get(ZenModeController.class);
         mController = Dependency.get(VolumeDialogController.class);
         mKeyguard = (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE);