diff -r 000000000000 -r 6474c204b198 layout/base/nsQuoteList.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/base/nsQuoteList.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,129 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+// vim:cindent:ts=2:et:sw=2:
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* implementation of quotes for the CSS 'content' property */
+
+#include "nsQuoteList.h"
+#include "nsReadableUtils.h"
+#include "nsIContent.h"
+
+bool
+nsQuoteNode::InitTextFrame(nsGenConList* aList, nsIFrame* aPseudoFrame,
+                           nsIFrame* aTextFrame)
+{
+  nsGenConNode::InitTextFrame(aList, aPseudoFrame, aTextFrame);
+
+  nsQuoteList* quoteList = static_cast<nsQuoteList*>(aList);
+  bool dirty = false;
+  quoteList->Insert(this);
+  if (quoteList->IsLast(this))
+    quoteList->Calc(this);
+  else
+    dirty = true;
+
+  // Don't set up text for 'no-open-quote' and 'no-close-quote'.
+  if (IsRealQuote()) {
+    aTextFrame->GetContent()->SetText(*Text(), false);
+  }
+  return dirty;
+}
+
+const nsString*
+nsQuoteNode::Text()
+{
+  NS_ASSERTION(mType == eStyleContentType_OpenQuote ||
+               mType == eStyleContentType_CloseQuote,
+               "should only be called when mText should be non-null");
+  const nsStyleQuotes* styleQuotes = mPseudoFrame->StyleQuotes();
+  int32_t quotesCount = styleQuotes->QuotesCount(); // 0 if 'quotes:none'
+  int32_t quoteDepth = Depth();
+
+  // Reuse the last pair when the depth is greater than the number of
+  // pairs of quotes.  (Also make 'quotes: none' and close-quote from
+  // a depth of 0 equivalent for the next test.)
+  if (quoteDepth >= quotesCount)
+    quoteDepth = quotesCount - 1;
+
+  const nsString *result;
+  if (quoteDepth == -1) {
+    // close-quote from a depth of 0 or 'quotes: none' (we want a node
+    // with the empty string so dynamic changes are easier to handle)
+    result = & EmptyString();
+  } else {
+    result = eStyleContentType_OpenQuote == mType
+               ? styleQuotes->OpenQuoteAt(quoteDepth)
+               : styleQuotes->CloseQuoteAt(quoteDepth);
+  }
+  return result;
+}
+
+void
+nsQuoteList::Calc(nsQuoteNode* aNode)
+{
+  if (aNode == FirstNode()) {
+    aNode->mDepthBefore = 0;
+  } else {
+    aNode->mDepthBefore = Prev(aNode)->DepthAfter();
+  }
+}
+
+void
+nsQuoteList::RecalcAll()
+{
+  nsQuoteNode *node = FirstNode();
+  if (!node)
+    return;
+
+  do {
+    int32_t oldDepth = node->mDepthBefore;
+    Calc(node);
+
+    if (node->mDepthBefore != oldDepth && node->mText && node->IsRealQuote())
+      node->mText->SetData(*node->Text());
+
+    // Next node
+    node = Next(node);
+  } while (node != FirstNode());
+}
+
+#ifdef DEBUG
+void
+nsQuoteList::PrintChain()
+{
+  printf("Chain: \n");
+  if (!FirstNode()) {
+    return;
+  }
+  nsQuoteNode* node = FirstNode();
+  do {
+    printf("  %p %d - ", static_cast<void*>(node), node->mDepthBefore);
+    switch(node->mType) {
+        case (eStyleContentType_OpenQuote):
+          printf("open");
+          break;
+        case (eStyleContentType_NoOpenQuote):
+          printf("noOpen");
+          break;
+        case (eStyleContentType_CloseQuote):
+          printf("close");
+          break;
+        case (eStyleContentType_NoCloseQuote):
+          printf("noClose");
+          break;
+        default:
+          printf("unknown!!!");
+    }
+    printf(" %d - %d,", node->Depth(), node->DepthAfter());
+    if (node->mText) {
+      nsAutoString data;
+      node->mText->GetData(data);
+      printf(" \"%s\",", NS_ConvertUTF16toUTF8(data).get());
+    }
+    printf("\n");
+    node = Next(node);
+  } while (node != FirstNode());
+}
+#endif