Add comments about mData in TypedArray.

    /*package*/ XmlBlock.Parser mXml;

    @UnsupportedAppUsage

    /*package*/ Resources.Theme mTheme;

    /**

     * mData is used to hold the value/id and other metadata about each attribute.

     *

     * [type, data, asset cookie, resource id, changing configuration, density]

     *

     * type - type of this attribute, see TypedValue#TYPE_*

     *

     * data - can be used in various ways:

     *     a) actual value of the attribute if type is between #TYPE_FIRST_INT and #TYPE_LAST_INT

     *        1) color represented by an integer (#TYPE_INT_COLOR_*)

     *        2) boolean represented by an integer (#TYPE_INT_BOOLEAN)

     *        3) integer number (#TYPE_TYPE_INT_DEC or #TYPE_INT_HEX)

     *        4) float number where integer gets interpreted as float (#TYPE_FLOAT, #TYPE_FRACTION

     *            and #TYPE_DIMENSION)

     *     b) index into string block inside AssetManager (#TYPE_STRING)

     *     c) attribute resource id in the current theme/style (#TYPE_ATTRIBUTE)

     *

     * asset cookie - used in two ways:

     *     a) for strings, drawables, and fonts it specifies the set of apk assets to look at

     *     (multi-apk case)

     *     b) cookie + asset as a unique identifier for drawable caches

     *

     * resource id - id that was finally used to resolve this attribute

     *

     * changing configuration - a mask of the configuration parameters for which the values in this

     * attribute may change

     *

     * density - density of drawable pointed to by this attribute

     */

    @UnsupportedAppUsage

    /*package*/ int[] mData;

    /**

     * Pointer to the start of the memory address of mData. It is passed via JNI and used to write

     * to mData array directly from native code (AttributeResolution.cpp).

     */

    /*package*/ long mDataAddress;

    @UnsupportedAppUsage

    /*package*/ int[] mIndices;

    /**

     * Similar to mDataAddress, but instead it is a pointer to mIndices address.

     */

    /*package*/ long mIndicesAddress;

    @UnsupportedAppUsage

    /*package*/ int mLength;