Merge changes from topic "step_event_permission" into qt-dev

* changes:
  Update Step Detector and Step Counter docstring
  Add support for retrieving targetSdkVersion

core/java/android/hardware/Sensor.java

@@ -364,6 +364,8 @@ public final class Sensor {
      * count steps if it is not activated. This sensor is ideal for fitness tracking applications.
      * It is defined as an {@link Sensor#REPORTING_MODE_ON_CHANGE} sensor.
      * <p>
+     * This sensor requires permission {@code android.permission.ACTIVITY_RECOGNITION}.
+     * <p>
      * See {@link android.hardware.SensorEvent#values SensorEvent.values} for more details.
      */
     public static final int TYPE_STEP_COUNTER = 19;
@@ -382,6 +384,8 @@ public final class Sensor {
      * gyroscope. This sensor uses lower power than the other rotation vectors, because it doesn't
      * use the gyroscope. However, it is more noisy and will work best outdoors.
      * <p>
+     * This sensor requires permission {@code android.permission.ACTIVITY_RECOGNITION}.
+     * <p>
      * See {@link android.hardware.SensorEvent#values SensorEvent.values} for more details.
      */
     public static final int TYPE_GEOMAGNETIC_ROTATION_VECTOR = 20;

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -23936,6 +23936,18 @@ public class PackageManagerService extends IPackageManager.Stub
             return 0;
         }
 
+        @Override
+        public int getTargetSdkVersionForPackage(String packageName)
+                throws RemoteException {
+            int callingUser = UserHandle.getUserId(Binder.getCallingUid());
+            ApplicationInfo info = getApplicationInfo(packageName, 0, callingUser);
+            if (info == null) {
+                throw new RemoteException(
+                        "Couldn't get ApplicationInfo for package " + packageName);
+            }
+            return info.targetSdkVersion;
+        }
+
         @Override
         public boolean[] isAudioPlaybackCaptureAllowed(String[] packageNames)
                 throws RemoteException {