Add support for early warning query

This CL adds the necessary code to enable the early warning query
from the provider.

Test: robotests in topic
Bug: 71593245
Bug: 71812931
Change-Id: I32e10d1b9f752af672b5d1c6ccb8ba9f2f9cc387

src/com/android/settings/fuelgauge/PowerUsageFeatureProvider.java

@@ -109,4 +109,13 @@ public interface PowerUsageFeatureProvider {
      * Checks whether to display the battery v2.
      */
     boolean isBatteryV2Enabled();
+
+    /**
+     * Returns a signal to indicate if the device will need to warn the user they may not make it
+     * to their next charging time.
+     *
+     * @param id Optional string used to identify the caller for metrics. Usually the class name of
+     * the caller
+     */
+    boolean getEarlyWarningSignal(Context context, String id);
 }