Cleaning up some animation states:

> When running one-off animations during quickstep, cancelling prevoisly
  running animations.
> Cancelling such one-off animations when state is reset
> Preventing touch proxied from recent transition to affect quickswitch
  (by affecting pagedView)

Bug: 135686388
Bug: 135571566
Change-Id: Id647015a583761d8fd46a02e3e2d88027e282a79

src/com/android/launcher3/LauncherAppTransitionManager.java

@@ -17,6 +17,7 @@
 package com.android.launcher3;
 
 
+import android.animation.Animator;
 import android.app.ActivityOptions;
 import android.content.Context;
 import android.graphics.Rect;
@@ -55,4 +56,15 @@ public class LauncherAppTransitionManager implements ResourceBasedOverride {
     public boolean supportsAdaptiveIconAnimation() {
         return false;
     }
+
+    /**
+     * Number of animations which run on state properties.
+     */
+    public int getStateElementAnimationsCount() {
+        return 0;
+    }
+
+    public Animator createStateElementAnimation(int index, float... values) {
+        throw new RuntimeException("Unknown gesture animation " + index);
+    }
 }