Merge changes from topic "cursor-bg-blink-cp" into tm-qpr-dev am: 131fb1ff89

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19955684

Change-Id: I896302084978f6f22cc52167f981d62feaedc31a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

core/java/android/widget/Editor.java

@@ -2869,6 +2869,17 @@ public class Editor {
         }
     }
 
+    /**
+     *
+     * @return whether the Blink runnable is blinking or not, if null return false.
+     * @hide
+     */
+    @VisibleForTesting
+    public boolean isBlinking() {
+        if (mBlink == null) return false;
+        return !mBlink.mCancelled;
+    }
+
     private class Blink implements Runnable {
         private boolean mCancelled;