Query PackageManager for receivers that can handle the intent and send
an explicit intent to these receivers.
Change-Id: I06f500c20ae0a20d689cf0805b6a82247ea55e73
Fix: 118387886
Test: robotests
Settings will send a broadcast when the user disable Grayscale in
Settings. Also, Settings registers a broadcast receiver to monitor the
status changed of Grayscale.
Bug: 118387886
Test: robotests
Change-Id: I92d1b9adf7a600b4abac943ebbd5a11d02d3d1b8
Build Grayscale conditional that lets users quickly turn off Grayscale
in Settings if it is on.
Bug: 118387886
Test: visual, robotests
Change-Id: Ibfc2d88f4f3f60f9b0acf084a49084030674de37
