Use Uri.toString() instead of Uri.toSafeString()

Uri.toSafeString strips out paths and shouldn't be used
for situations other than logging.

Bug: 232694281
Test: PtsPowerTestCases
Change-Id: Iec835b738c3e928e922bd6a14573106f2ce4f526

tests/robotests/src/com/android/settings/search/SearchFeatureProviderImplTest.java

@@ -120,7 +120,7 @@ public class SearchFeatureProviderImplTest {
         final Intent searchIntent = mProvider.buildSearchIntent(mActivity, SettingsEnums.TESTING);
         final Uri referrer = searchIntent.getParcelableExtra(Intent.EXTRA_REFERRER);
 
-        assertThat(referrer.toSafeString()).isEqualTo(
+        assertThat(referrer.toString()).isEqualTo(
                 "android-app://" + mActivity.getPackageName() + "/" + SettingsEnums.TESTING);
     }