SysUI: Move all sensor operations to the background thread

Registering / unregistering listeners for sensors now frequently takes several hundred
miliseconds. Work around this by moving all sensor operations off the main thread.

Change-Id: Ic3537889e1d6e045149942bebb0211afe1192033
Fixes: 64103634
Test: Turn on phone from AOD2. Verify no jank.
diff --git a/packages/SystemUI/src/com/android/systemui/classifier/FalsingManager.java b/packages/SystemUI/src/com/android/systemui/classifier/FalsingManager.java
index e92ed2f..e4b405f 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/FalsingManager.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/FalsingManager.java
@@ -35,6 +35,7 @@
 import com.android.systemui.UiOffloadThread;
 import com.android.systemui.analytics.DataCollector;
 import com.android.systemui.statusbar.StatusBarState;
+import com.android.systemui.util.AsyncSensorManager;
 
 import java.io.PrintWriter;
 
@@ -87,7 +88,7 @@
 
     private FalsingManager(Context context) {
         mContext = context;
-        mSensorManager = mContext.getSystemService(SensorManager.class);
+        mSensorManager = Dependency.get(AsyncSensorManager.class);
         mAccessibilityManager = context.getSystemService(AccessibilityManager.class);
         mDataCollector = DataCollector.getInstance(mContext);
         mHumanInteractionClassifier = HumanInteractionClassifier.getInstance(mContext);