[incremental] increase progress comparison precision

This ensures that the package is not regarded as fully loaded even if
only 1 page is missing in a 4GB app.

BUG: 182205656
Test: atest android.cts.statsdatom.statsd.IncrementalAtomTests
Change-Id: Id6f41a77c690c01cf0d210e6b09708572a36e088

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

@@ -293,11 +293,11 @@ public final class IncrementalStates {
             Slog.i(TAG, "received progress update: " + progress);
         }
         mLoadingState.setProgress(progress);
-        if (1 - progress < 0.001) {
+        if (Math.abs(1.0f - progress) < 0.00000001f) {
             if (DEBUG) {
                 Slog.i(TAG, "package is fully loaded");
             }
-            mLoadingState.setProgress(1);
+            mLoadingState.setProgress(1.0f);
             if (mLoadingState.isLoading()) {
                 mLoadingState.adoptNewLoadingStateLocked(false);
             }