Fix an issue that the icon rewritten logic not working in non-primary user

1.IconsContentProvider should be singleUser, i.e. it should run
  in user 0 only.
2.IconsContentProvider should get the icon from the calling user.

Fixes: 157073154

Test: Run our mts.
Test: Create a work profile. Select an email address, verify the icon.
Test: Create a work profile. Install a browser in work profile only.
      Select a URL and verify the icon
Change-Id: Idf4ef86f8f2aa110f755e9518cd151b943f2aea0

core/res/AndroidManifest.xml

@@ -5477,13 +5477,14 @@
         <service android:name="com.android.server.pm.PackageManagerShellCommandDataLoader"
             android:exported="false">
             <intent-filter>
-                <action android:name="android.intent.action.LOAD_DATA" />
+                <action android:name="android.intent.action.LOAD_DATA"/>
             </intent-filter>
         </service>
 
         <provider
             android:name="com.android.server.textclassifier.IconsContentProvider"
             android:authorities="com.android.textclassifier.icons"
+            android:singleUser="true"
             android:enabled="true"
             android:exported="true">
         </provider>

services/core/java/com/android/server/textclassifier/IconsContentProvider.java

@@ -25,6 +25,7 @@ import android.graphics.drawable.Icon;
 import android.net.Uri;
 import android.os.ParcelFileDescriptor;
 import android.os.ParcelFileDescriptor.AutoCloseOutputStream;
+import android.os.UserHandle;
 import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
@@ -51,7 +52,7 @@ public final class IconsContentProvider extends ContentProvider {
         try {
             final ResourceInfo res = IconsUriHelper.getInstance().getResourceInfo(uri);
             final Drawable drawable = Icon.createWithResource(res.packageName, res.id)
-                    .loadDrawable(getContext());
+                    .loadDrawableAsUser(getContext(), UserHandle.getCallingUserId());
             final byte[] data = getBitmapData(drawable);
             final ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
             final ParcelFileDescriptor readSide = pipe[0];