1. Implement API extends Material Next FooterBarPreference and support Accessibility API for icons
2. Apply solutions to accessibility tools and framework tools in
accessibility settings page.
3. Apply DashboardFragment for Caption preference for xml parser
Bug: 185973304
Test: make RunSettingsRoboTests -j52
Change-Id: I6b80bc80190d6666e3fbcd462442a9f2c0e60bba
This is an upstreaming change of http://ag/8541963 and
http://ag/10296201 to hide some items from settings search.
This CL also adds javadoc to some settings classes to fix pre-upload
warnings.
Bug: 153704887
Test: Manual. In ARC build, "bluetooth" and "accessibility" no longer shows related settings.
Change-Id: Ic3e9217944251adbea1bdd67baf66d3a9e89583a
Group text size and style into appearance page.
Move language under more options page.
Bug: 143502915
Test: Maunal
Change-Id: Ice104ed844dc3a10a22c91a10211a8978da68cc3