Populate Enterprise Privacy Settings page - batch 1

This CL adds the first batch of items to the Privacy Settings page.
These are all the items that fall into the "What types of
information can your organization see?" category and do not require
deeper Framework changes. Further batches are to come in separate
CLs.

Test: make RunSettingsRoboTests
Bug: 32692748
Change-Id: I460093bc45ed0e5baab2a5cdf9833e654d436cc9

src/com/android/settings/applications/ApplicationFeatureProviderImpl.java

@@ -18,17 +18,50 @@ package com.android.settings.applications;
 
 import android.app.Fragment;
 import android.content.Context;
+import android.content.pm.UserInfo;
+import android.os.UserManager;
 import android.view.View;
 
+import java.util.List;
+
 public class ApplicationFeatureProviderImpl implements ApplicationFeatureProvider {
 
     private final Context mContext;
+    private final PackageManagerWrapper mPm;
+    private final UserManager mUm;
 
-    public ApplicationFeatureProviderImpl(Context context) {
+    public ApplicationFeatureProviderImpl(Context context, PackageManagerWrapper pm) {
         mContext = context.getApplicationContext();
+        mPm = pm;
+        mUm = UserManager.get(mContext);
     }
 
+    @Override
     public AppHeaderController newAppHeaderController(Fragment fragment, View appHeader) {
         return new AppHeaderController(mContext, fragment, appHeader);
     }
+
+    @Override
+    public void calculateNumberOfInstalledApps(NumberOfInstalledAppsCallback callback) {
+        new AllUserInstalledAppCounter(callback).execute();
+    }
+
+    private class AllUserInstalledAppCounter extends InstalledAppCounter {
+        private NumberOfInstalledAppsCallback mCallback;
+
+        AllUserInstalledAppCounter(NumberOfInstalledAppsCallback callback) {
+            super(mContext, ApplicationFeatureProviderImpl.this.mPm);
+            mCallback = callback;
+        }
+
+        @Override
+        protected void onCountComplete(int num) {
+            mCallback.onNumberOfInstalledAppsResult(num);
+        }
+
+        @Override
+        protected List<UserInfo> getUsersToCount() {
+            return mUm.getUsers(true /* excludeDying */);
+        }
+    }
 }