Only doing the icon animations now when expanding slowly

Previously the animation was too distrating when expanding
fast.

Test: add notification, expand fast, observe no animations
Change-Id: I11658368b49094368886c64028c210a1dc95d938
Fixes: 33458094
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
index 94fc17a8..e1ff297 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
@@ -55,6 +55,9 @@
     private ActivatableNotificationView mLastVisibleBackgroundChild;
     private float mCurrentScrollVelocity;
     private int mStatusBarState;
+    private float mExpandingVelocity;
+    private boolean mPanelTracking;
+    private boolean mExpansionChanging;
 
     public AmbientState(Context context) {
         reload(context);
@@ -260,4 +263,28 @@
     public void setStatusBarState(int statusBarState) {
         mStatusBarState = statusBarState;
     }
+
+    public void setExpandingVelocity(float expandingVelocity) {
+        mExpandingVelocity = expandingVelocity;
+    }
+
+    public void setExpansionChanging(boolean expansionChanging) {
+        mExpansionChanging = expansionChanging;
+    }
+
+    public boolean isExpansionChanging() {
+        return mExpansionChanging;
+    }
+
+    public float getExpandingVelocity() {
+        return mExpandingVelocity;
+    }
+
+    public void setPanelTracking(boolean panelTracking) {
+        mPanelTracking = panelTracking;
+    }
+
+    public boolean isPanelTracking() {
+        return mPanelTracking;
+    }
 }