Expose br tag in AX Tree as ROLE_SYSTEM_WHITESPACE.

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 1d783f1e34a0d08909af17f9f4a6d50d125b6645..2ecf9734530fe0b105e46eb488d5699136211f9d 100644
--- a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
+++ b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
@@ -507,7 +507,7 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityBody) {
   RunHtmlTest(FILE_PATH_LITERAL("body.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, DISABLED_AccessibilityBR) {
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityBR) {
   RunHtmlTest(FILE_PATH_LITERAL("br.html"));
 }
 
@@ -557,7 +557,7 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityDetails) {
   RunHtmlTest(FILE_PATH_LITERAL("details.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, DISABLED_AccessibilityDfn) {
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityDfn) {
   RunHtmlTest(FILE_PATH_LITERAL("dfn.html"));
 }
 
@@ -742,8 +742,7 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityInputSearch) {
   RunHtmlTest(FILE_PATH_LITERAL("input-search.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       DISABLED_AccessibilityInputSubmit) {
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityInputSubmit) {
   RunHtmlTest(FILE_PATH_LITERAL("input-submit.html"));
 }
 
@@ -800,8 +799,7 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityLandmark) {
   RunHtmlTest(FILE_PATH_LITERAL("landmark.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       DISABLED_AccessibilityLegend) {
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityLegend) {
   RunHtmlTest(FILE_PATH_LITERAL("legend.html"));
 }
 
@@ -921,7 +919,7 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityS) {
   RunHtmlTest(FILE_PATH_LITERAL("s.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, DISABLED_AccessibilitySamp) {
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilitySamp) {
   RunHtmlTest(FILE_PATH_LITERAL("samp.html"));
 }