GlobalScreenshot.ActionProxyReceiver was calling
getComponent(context, StatusBar.class). With this change, StatusBar is now
injected into the constructor of that class.
Bug: 143224715
Test: atest SystemUITests
Change-Id: I2f635ce98c1c0e2326784c4558b28ce51f347fa9
This will allow us to mark parts of the core system as Optional,
like the StatusBar.
Bug: 140514132
Test: atest SystemUITests
Change-Id: I37f6fa414e9dc2a672dd0bc8cc69ce4049762973