DO NOT MERGE Revert "Accept a Window as shown if it's in any transition"

This reverts commit 8ed3e4a.

Reason for revert: Task embedding flicker b/276472426
Fix: 276472426
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:dd2ba83f7921f070ceee53a795a17c0a8127c266)
Merged-In: I81a41081ff5905cba35930f1a0de04c2000b5dfa
Change-Id: I81a41081ff5905cba35930f1a0de04c2000b5dfa

Author: hex539

services/core/java/com/android/server/wm/WindowState.java

@@ -2053,19 +2053,16 @@ boolean isInteresting() {
 
     /**
      * Like isOnScreen(), but we don't return true if the window is part
-     * of a transition but has not yet started animating.
+     * of a transition that has not yet been started.
      */
     boolean isReadyForDisplay() {
-        if (!mHasSurface || mDestroying || !isVisibleByPolicy()) {
-            return false;
-        }
-        if (mToken.waitingToShow && getDisplayContent().mAppTransition.isTransitionSet()
-                && !isAnimating(TRANSITION | PARENTS, ANIMATION_TYPE_APP_TRANSITION)) {
+        if (mToken.waitingToShow && getDisplayContent().mAppTransition.isTransitionSet()) {
             return false;
         }
         final boolean parentAndClientVisible = !isParentWindowHidden()
                 && mViewVisibility == View.VISIBLE && mToken.isVisible();
-        return parentAndClientVisible || isAnimating(TRANSITION | PARENTS, ANIMATION_TYPE_ALL);
+        return mHasSurface && isVisibleByPolicy() && !mDestroying
+                && (parentAndClientVisible || isAnimating(TRANSITION | PARENTS));
     }
 
     boolean isFullyTransparent() {