Disable aria-columnheader.html, aria-row.html, aria-rowheader.html, aria-sort.html

Re-baseline after the Blink(crbug.com/451047) change goes in.

BUG=451047

Review URL: https://codereview.chromium.org/873593003

Cr-Commit-Position: refs/heads/master@{#313061}

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

@@ -184,8 +184,10 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaChecked) {
   RunAriaTest(FILE_PATH_LITERAL("aria-checked.html"));
 }
 
+// crbug.com/451047 will cause new elements to be added to the blink a11y tree
+// Re-baseline after the Blink change goes in
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       AccessibilityAriaColumnHeader) {
+                       DISABLED_AccessibilityAriaColumnHeader) {
   RunAriaTest(FILE_PATH_LITERAL("aria-columnheader.html"));
 }
 
@@ -433,7 +435,10 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaRequired) {
   RunAriaTest(FILE_PATH_LITERAL("aria-required.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaRow) {
+// crbug.com/451047 will cause new elements to be added to the blink a11y tree
+// Re-baseline after the Blink change goes in
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
+                       DISABLED_AccessibilityAriaRow) {
   RunAriaTest(FILE_PATH_LITERAL("aria-row.html"));
 }
 
@@ -441,7 +446,10 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaRowGroup) {
   RunAriaTest(FILE_PATH_LITERAL("aria-rowgroup.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaRowHeader) {
+// crbug.com/451047 will cause new elements to be added to the blink a11y tree
+// Re-baseline after the Blink change goes in
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
+                       DISABLED_AccessibilityAriaRowHeader) {
   RunAriaTest(FILE_PATH_LITERAL("aria-rowheader.html"));
 }
 
@@ -461,7 +469,10 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaSeparator) {
   RunAriaTest(FILE_PATH_LITERAL("aria-separator.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaSort) {
+// crbug.com/451047 will cause new elements to be added to the blink a11y tree
+// Re-baseline after the Blink change goes in
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
+                       DISABLED_AccessibilityAriaSort) {
   RunAriaTest(FILE_PATH_LITERAL("aria-sort.html"));
 }