Revert "Quicksettings: Remove PIE tips dialog"

This reverts commit d71976c164489d197358a7f0d7d185d56301633c.
Add safe headset volume warning

This reverts commit 81949e9912fa8ad93f3bf8db6dae5b2d46353c5c.

Conflicts:
	core/java/android/provider/Settings.java
Add in-the-spot user preference dialog"

This reverts commit 9da940f15a22cd24dd7a4df9f6a61fef391b23ac.