Use new TimeInterpolator interface for interpolation

Change-Id: I53e8fcbabfdb4cb69bec309aeceeddc63e1715ed
diff --git a/src/com/android/launcher2/CellLayout.java b/src/com/android/launcher2/CellLayout.java
index d26b2f9..164d7c5 100644
--- a/src/com/android/launcher2/CellLayout.java
+++ b/src/com/android/launcher2/CellLayout.java
@@ -18,6 +18,7 @@
 
 import com.android.launcher.R;
 
+import android.animation.TimeInterpolator;
 import android.animation.ValueAnimator;
 import android.animation.ValueAnimator.AnimatorUpdateListener;
 import android.app.WallpaperManager;
@@ -38,7 +39,6 @@
 import android.view.ViewGroup;
 import android.view.animation.Animation;
 import android.view.animation.DecelerateInterpolator;
-import android.view.animation.Interpolator;
 import android.view.animation.LayoutAnimationController;
 
 public class CellLayout extends ViewGroup implements Dimmable {
@@ -161,7 +161,7 @@
 
         mDragRectDrawable = res.getDrawable(R.drawable.rounded_rect_green);
         mCrosshairsDrawable = res.getDrawable(R.drawable.gardening_crosshairs);
-        Interpolator interp = new DecelerateInterpolator(2.5f); // Quint ease out
+        TimeInterpolator interp = new DecelerateInterpolator(2.5f); // Quint ease out
 
         // Set up the animation for fading the crosshairs in and out
         int animDuration = res.getInteger(R.integer.config_crosshairsFadeInTime);