Location updates not working indoors as claimed by Fusion Location Provider APIs

Issue:

Location updates not working indoors as claimed by Fusion Location Provider APIs.

What happened:

1. I tried implementing the latest location API to get location updates using LocationClient in my Android App.
2. My android app works fine with out any issue while I am testing outdoor.
3. But when testing indoors (inside any building), then no location updates are happening.

Expected behavior:

As per the new APIs, I am expecting to get some estimated location around the building while I am indoors (as GPS do not find the satellite signal for accurate location).

I see that latest Google Maps android app works fine indoors with estimated location.

Question:

What else do I have to take care using new location APIs to get the location update indoors (accurate location is not required, low accuracy is also fine).

I am implementing the Android App using Android 4.2.2 version APIs. I am testing on HTC One X (OS v 4.1.1)

Below is the android code that I applied to get location updates using new APIs:

Step1:

mLocationClient = new LocationClient(this, this, this);

Step2:

// Create the LocationRequest object
mLocationRequest = LocationRequest.create();
// Use high accuracy
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
// Set the update interval to 5 seconds
mLocationRequest.setInterval(UPDATE_INTERVAL);
// Set the fastest update interval to 1 second
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);

Step3: inside onStart() method - below line is added:

// Connect the client.
mLocationClient.connect();

Step4: inside onConnected() method - below line is added:

mLocationClient.requestLocationUpda