Rendering text to a canvas in a frame-less document.

third_party/WebKit/Source/core/dom/Element.cpp

Index: third_party/WebKit/Source/core/dom/Element.cpp
diff --git a/third_party/WebKit/Source/core/dom/Element.cpp b/third_party/WebKit/Source/core/dom/Element.cpp
index 71773b8257082eb9f7765e35561721991944fdc1..c9f607cb28b54fafa80361a0fb6f7c69372c7e17 100644
--- a/third_party/WebKit/Source/core/dom/Element.cpp
+++ b/third_party/WebKit/Source/core/dom/Element.cpp
@@ -2883,7 +2883,7 @@ const ComputedStyle* Element::ensureComputedStyle(PseudoId pseudoElementSpecifie
     if (PseudoElement* element = pseudoElement(pseudoElementSpecifier))
         return element->ensureComputedStyle();
 
-    if (!inActiveDocument()) {
+    if (!inActiveDocument() && document().frame()) {
         // FIXME: Try to do better than this. Ensure that styleForElement() works for elements that are not in the
         // document tree and figure out when to destroy the computed style for such elements.
         return nullptr;