Add SDK 29 sources.

Test: N/A
Change-Id: Iedb7a31029e003928eb16f7e69ed147e72bb6235

android/util/JsonToken.java

diff --git a/android/util/JsonToken.java b/android/util/JsonToken.java
new file mode 100644
index 0000000..45bc6ca
--- /dev/null
+++ b/android/util/JsonToken.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.util;
+
+/**
+ * A structure, name or value type in a JSON-encoded string.
+ */
+public enum JsonToken {
+
+    /**
+     * The opening of a JSON array. Written using {@link JsonWriter#beginObject}
+     * and read using {@link JsonReader#beginObject}.
+     */
+    BEGIN_ARRAY,
+
+    /**
+     * The closing of a JSON array. Written using {@link JsonWriter#endArray}
+     * and read using {@link JsonReader#endArray}.
+     */
+    END_ARRAY,
+
+    /**
+     * The opening of a JSON object. Written using {@link JsonWriter#beginObject}
+     * and read using {@link JsonReader#beginObject}.
+     */
+    BEGIN_OBJECT,
+
+    /**
+     * The closing of a JSON object. Written using {@link JsonWriter#endObject}
+     * and read using {@link JsonReader#endObject}.
+     */
+    END_OBJECT,
+
+    /**
+     * A JSON property name. Within objects, tokens alternate between names and
+     * their values. Written using {@link JsonWriter#name} and read using {@link
+     * JsonReader#nextName}
+     */
+    NAME,
+
+    /**
+     * A JSON string.
+     */
+    STRING,
+
+    /**
+     * A JSON number represented in this API by a Java {@code double}, {@code
+     * long}, or {@code int}.
+     */
+    NUMBER,
+
+    /**
+     * A JSON {@code true} or {@code false}.
+     */
+    BOOLEAN,
+
+    /**
+     * A JSON {@code null}.
+     */
+    NULL,
+
+    /**
+     * The end of the JSON stream. This sentinel value is returned by {@link
+     * JsonReader#peek()} to signal that the JSON-encoded value has no more
+     * tokens.
+     */
+    END_DOCUMENT
+}