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

third_party/WebKit/Source/core/css/CSSFontSelector.cpp

Index: third_party/WebKit/Source/core/css/CSSFontSelector.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSFontSelector.cpp b/third_party/WebKit/Source/core/css/CSSFontSelector.cpp
index 226751504939dff194d968a8fc4032c740fd1b6e..8c20e0245e81b65f35825114e7c70a613366a2cf 100644
--- a/third_party/WebKit/Source/core/css/CSSFontSelector.cpp
+++ b/third_party/WebKit/Source/core/css/CSSFontSelector.cpp
@@ -44,13 +44,14 @@ namespace blink {
 
 CSSFontSelector::CSSFontSelector(Document* document)
     : m_document(document)
-    , m_genericFontFamilySettings(document->settings()->genericFontFamilySettings())
+    , m_genericFontFamilySettings(document->frame()->settings()->genericFontFamilySettings())
 {
     // FIXME: An old comment used to say there was no need to hold a reference to m_document
     // because "we are guaranteed to be destroyed before the document". But there does not
     // seem to be any such guarantee.
 
     ASSERT(m_document);
+    DCHECK(m_document->frame());
     FontCache::fontCache()->addClient(this);
     FontFaceSet::from(*document)->addFontFacesToFontFaceCache(&m_fontFaceCache, this);
 }