Fix battery icon dark initialization

Test: visual
Change-Id: I333436dd0ffb4a7791a98caa53054d01e9ff18ef
Fixes: 36443516

packages/SettingsLib/src/com/android/settingslib/graph/BatteryMeterDrawableBase.java

@@ -63,7 +63,7 @@ public class BatteryMeterDrawableBase extends Drawable {
             mPlusPaint;
     private float mTextHeight, mWarningTextHeight;
     private int mIconTint = Color.WHITE;
-    private float mOldDarkIntensity = 0f;
+    private float mOldDarkIntensity = -1f;
 
     private int mHeight;
     private int mWidth;

packages/SystemUI/src/com/android/systemui/BatteryMeterView.java

@@ -98,6 +98,8 @@ public class BatteryMeterView extends LinearLayout implements
         addView(mBatteryIconView, mlp);
 
         updateShowPercent();
+        // Init to not dark at all.
+        onDarkChanged(new Rect(), 0, DarkIconDispatcher.DEFAULT_ICON_TINT);
     }
 
     public void setForceShowPercent(boolean show) {