Merge "Defer resizing invisible stacks while drag resizing" into pi-dev am: 5e12ebfffd

am: 03d4aeda37

Change-Id: Ic4e21bcd38e09cd237fcf149ba308bfdbf77240d

graphics/java/android/graphics/Rect.java

@@ -17,6 +17,7 @@
 package android.graphics;
 
 import android.annotation.CheckResult;
+import android.annotation.Nullable;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -99,6 +100,16 @@ public final class Rect implements Parcelable {
         }
     }
 
+    /**
+     * Returns a copy of {@code r} if {@code r} is not {@code null}, or {@code null} otherwise.
+     *
+     * @hide
+     */
+    @Nullable
+    public static Rect copyOrNull(@Nullable Rect r) {
+        return r == null ? null : new Rect(r);
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;