Code cleanup.

Enforce 100 char line length, and remove checks for always-true
conditions.

Change-Id: Ie24d12919859e8269f77fabf93b3d745ece94479
(cherry picked from commit c9aa30958c4a4a853de5517fbf084fcf56d9fb69)
frameworks/base: Fix delay in sending AUDIO_BECOMING_NOISY intent

AUDIO_BECOMING_NOISY intent is sent as background intent which causes
delay in receiving pause event. This delay caused audio leak. By
marking the event as FLAG_RECEIVER_FOREGROUND, this intent is
received sooner by Application.

Change-Id: Ib978cf8322dcddbc01f59824f95fa7800f9c35af
CRs-Fixed: 652549
(cherry picked from commit d90ac10763f028a37bebc67776c6cb14c05a96fe)
NotificationPanelView: check if file exists rather than if its null

the file will always be non null, which turns this statement to true
rather check if the file exists before using it, which makes more sense

Change-Id: Ied61406773ffcdb0d4fb63bf34ae21c8dff00918
(cherry picked from commit 7fb846ac147d0ab30aa18731b677a4c3539c4081)