Fix crash when primary user select app installed by secondary user.

- PackageManager.getPackageInfo() can return null. When trying to check
the app permission info, check for null package info and only process
the permission info when package info is available.
- Update usage of PackageManager.MATCH_UNINSTALLED_PACKAGES to
PackageManager.MATCH_ANY_USER, as the implementation for querying
packages for other users have been changed.
- Add PackageManager APIs used by AppStateAppOpsBridge to
IPackageManagerWrapper for test purpose.
- Change UserManager.get() to Context.getSystemService() to fix test
failure.

Change-Id: I52de924618aa252ffaae02b8f06ebe5b1d0def61
Fix: 37409266
Test: make RunSettingsRoboTests

src/com/android/settings/core/instrumentation/SharedPreferencesLogger.java

@@ -144,7 +144,7 @@ public class SharedPreferencesLogger implements SharedPreferences {
             } catch (Exception e) {
             }
             try {
-                pm.getPackageInfo(value, PackageManager.MATCH_UNINSTALLED_PACKAGES);
+                pm.getPackageInfo(value, PackageManager.MATCH_ANY_USER);
                 logPackageName(key, value);
             } catch (PackageManager.NameNotFoundException e) {
                 // Clearly not a package, and it's unlikely this preference is in prefSet, so