Keep track of fixed positioning in accessibility tree.

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 34484febdedd2dd2c6969fa98b4ba69e1bace1ff..ce983a474509d0a07e912a351197a2ebd1c7b06d 100644
--- a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
+++ b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
@@ -240,6 +240,16 @@ IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityCSSColor) {
   RunCSSTest(FILE_PATH_LITERAL("color.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
+                       AccessibilityCSSFixedWithScrolling) {
+  RunCSSTest(FILE_PATH_LITERAL("fixed-with-scrolling.html"));
+}
+
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
+                       AccessibilityCSSFixedTransformedWithScrolling) {
+  RunCSSTest(FILE_PATH_LITERAL("fixed-transformed-with-scrolling.html"));
+}
+
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityCSSFontStyle) {
   RunCSSTest(FILE_PATH_LITERAL("font-style.html"));
 }