Cleanup anonymous text objects that pass the document as a node.

third_party/WebKit/Source/core/layout/LayoutTextFragment.cpp

Index: third_party/WebKit/Source/core/layout/LayoutTextFragment.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutTextFragment.cpp b/third_party/WebKit/Source/core/layout/LayoutTextFragment.cpp
index 09e5c925aed0016f4c4768a643f18b8e1f658602..3f11242b54cd0d467d3c2a522b0994f63b62be22 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTextFragment.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutTextFragment.cpp
@@ -26,6 +26,7 @@
 #include "core/dom/PseudoElement.h"
 #include "core/dom/StyleChangeReason.h"
 #include "core/dom/Text.h"
+#include "core/frame/FrameView.h"
 #include "core/layout/HitTestResult.h"
 
 namespace blink {
@@ -50,6 +51,23 @@ LayoutTextFragment::~LayoutTextFragment() {
   ASSERT(!m_firstLetterPseudoElement);
 }
 
+LayoutTextFragment* LayoutTextFragment::createAnonymous(PseudoElement& pseudo,
+                                                        StringImpl* text,
+                                                        unsigned start,
+                                                        unsigned length) {
+  LayoutTextFragment* fragment =
+      new LayoutTextFragment(nullptr, text, start, length);
+  fragment->setDocumentForAnonymous(&pseudo.document());
+  if (length)
+    pseudo.document().view()->incrementVisuallyNonEmptyCharacterCount(length);
+  return fragment;
+}
+
+LayoutTextFragment* LayoutTextFragment::createAnonymous(PseudoElement& pseudo,
+                                                        StringImpl* text) {
+  return createAnonymous(pseudo, text, 0, text ? text->length() : 0);
+}
+
 void LayoutTextFragment::willBeDestroyed() {
   if (m_isRemainingTextLayoutObject && m_firstLetterPseudoElement)
     m_firstLetterPseudoElement->setRemainingTextLayoutObject(nullptr);