Expose IA2 role for embed, object element.

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

Index: content/browser/accessibility/dump_accessibility_tree_browsertest.cc
diff --git a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
index 26000ce0309cc8a3add3c54cd8e26cc1654bbaf3..c2b6592ea606f1144f90cafab2a78023f9047278 100644
--- a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
+++ b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
@@ -706,6 +706,10 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityEm) {
   RunTest(FILE_PATH_LITERAL("em.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityEmbed) {
+  RunTest(FILE_PATH_LITERAL("embed.html"));
+}
+
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityFieldset) {
   RunTest(FILE_PATH_LITERAL("fieldset.html"));
 }