Add null check to AXLayoutObject::computeAccessibilityIsIgnored

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 1698981f6c2eaf7b6aba21fbdd5d5536494a7730..0569076bf68a63504bd25600ff72a8c29da7c3ef 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
@@ -544,6 +544,9 @@ bool AXLayoutObject::computeAccessibilityIsIgnored(IgnoredReasons* ignoredReason
     ASSERT(m_initialized);
 #endif
 
+    if (!m_layoutObject)
+        return true;
+
     // Check first if any of the common reasons cause this element to be ignored.
     // Then process other use cases that need to be applied to all the various roles
     // that AXLayoutObjects take on.