tree 04fc42bb1cbc274a6af1ddf7151aa6a1aef82a15
parent e77e1dcc6d15ed53dc505c84ddd0f8f97ec51940
author Hariprasad Jayakumar <hjayak@codeaurora.org> 1357700909 -0800
committer Santos Cordon <santoscordon@google.com> 1366411841 -0700

PhoneApp: Initialize ToneGenerator when needed

Cherry pick from AOSP.

Whenever there is a radio tech change, mSignalInfoToneGenerator
is released and never created. This leads to phone app crash later
when it is accessed for toneplay. This is fixed by not releasing the
instance between RAT changes.

Bug: 8609102
Change-Id: I2f2513624b66892018dc3191daf3e48c63f744a1