Expose semantics of landmark and related roles for assitive technologies

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

Index: content/browser/accessibility/dump_accessibility_tree_browsertest.cc
===================================================================
--- content/browser/accessibility/dump_accessibility_tree_browsertest.cc	(revision 242763)
+++ content/browser/accessibility/dump_accessibility_tree_browsertest.cc	(working copy)
@@ -421,6 +421,10 @@
   RunTest(FILE_PATH_LITERAL("label.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityLandmark) {
+  RunTest(FILE_PATH_LITERAL("landmark.html"));
+}
+
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityListMarkers) {
   RunTest(FILE_PATH_LITERAL("list-markers.html"));
 }
@@ -454,6 +458,10 @@
   RunTest(FILE_PATH_LITERAL("p.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityRegion) {
+  RunTest(FILE_PATH_LITERAL("region.html"));
+}
+
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilitySelect) {
   RunTest(FILE_PATH_LITERAL("select.html"));
 }