Bug 1582606 - Allow data: url on GVE. r=geckoview-reviewers,agi

If data: url has space, it doesn't be recognized as data: url on GVE.

Differential Revision: https://phabricator.services.mozilla.com/D127124

mobile/android/geckoview_example/src/main/java/org/mozilla/geckoview_example/GeckoViewActivity.java

@@ -421,7 +421,7 @@ public class GeckoViewActivity
     private LocationView.CommitListener mCommitListener = new LocationView.CommitListener() {
         @Override
         public void onCommit(String text) {
-            if ((text.contains(".") || text.contains(":")) && !text.contains(" ")) {
+            if (text.startsWith("data:") || ((text.contains(".") || text.contains(":")) && !text.contains(" "))) {
                 mTabSessionManager.getCurrentSession().loadUri(text);
             } else {
                 mTabSessionManager.getCurrentSession().loadUri(SEARCH_URI_BASE + text);