[Reland] Invalidate whitespace text on text color changes

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp b/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
index 5cde34330ee468bf280abd9c80b92f2fab879a55..90193dd816bd579273edaec8468f09823112139e 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
@@ -614,7 +614,7 @@ bool AXLayoutObject::computeAccessibilityIsIgnored(IgnoredReasons* ignoredReason
             return true;
         }
         LayoutText* layoutText = toLayoutText(m_layoutObject);
-        if (!layoutText->firstTextBox()) {
+        if (!layoutText->hasTextBoxes()) {
             if (ignoredReasons)
                 ignoredReasons->append(IgnoredReason(AXEmptyText));
             return true;