Fix animation bugs, stop disabled sweep touches.

Change sweep drawables to crossfade correctly between states, and
work around 4946591 by nesting container one level deeper.  Also wait
until first layout pass is finished before applying LayoutTransition.

Prevent touches from reaching sweeps when chart is disabled.  Also
bring back log scale for data.

Change-Id: I2194714ab075fd32525681119f30427c1b96fc50

src/com/android/settings/widget/ChartView.java

@@ -21,6 +21,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
+import android.util.Log;
 import android.view.Gravity;
 import android.view.View;
 import android.widget.FrameLayout;
@@ -93,7 +94,6 @@ public class ChartView extends FrameLayout {
                 // sweep is always placed along specific dimension
                 final ChartSweepView sweep = (ChartSweepView) child;
                 final Rect sweepMargins = sweep.getSweepMargins();
-                final float point = sweep.getPoint();
 
                 if (sweep.getFollowAxis() == ChartSweepView.HORIZONTAL) {
                     parentRect.left = parentRect.right =