Merge "Fix docs build breakage"

     * A content description briefly describes the view and is primarily used

     * for accessibility support to determine how a view should be presented to

     * the user. In the case of a view with no textual representation, such as

     * {@link ImageButton}, a useful content description explains what the view

     * does. For example, an image button with a phone icon that is used to

     * place a call may use "Call" as its content description. An image of a

     * floppy disk that is used to save a file may use "Save".

     * {@link android.view.ImageButton}, a useful content description explains

     * what the view does. For example, an image button with a phone icon that

     * is used to place a call may use "Call" as its content description. An

     * image of a floppy disk that is used to save a file may use "Save".

     *

     * @param contentDescription The content description.

     * @see #getContentDescription()