Ignore exceptions in embed extractors

javatests/org/chromium/distiller/ContentExtractorTest.java

Index: javatests/org/chromium/distiller/ContentExtractorTest.java
diff --git a/javatests/org/chromium/distiller/ContentExtractorTest.java b/javatests/org/chromium/distiller/ContentExtractorTest.java
index c26b7db480bf44ac3b016ac6e31a00a4dfdb19cc..83a0a12e152a5ec4885688f8c2583a23792ea261 100644
--- a/javatests/org/chromium/distiller/ContentExtractorTest.java
+++ b/javatests/org/chromium/distiller/ContentExtractorTest.java
@@ -622,6 +622,12 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(expected, htmlArticle);
     }
 
+    public void testSandboxedIFrame() {
+        final String html ="<iframe sandbox></iframe>";
+
+        assertExtractor("", html);
+    }
+
     public void testSpanArticle() {
         final String htmlArticle =
             "<span>" + CONTENT_TEXT + "</span>" +