Import WebKit commit 6d0ad27b6bc4209fb8d8cee2692dc0c6a5462051v5.212.0-alpha2

Change-Id: Ifdedb7bc3162434686201813dc1d994cf5ae7e70
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>

2 files changed, 5 insertions, 1 deletions

diff --git a/Source/WebCore/dom/Document.cpp b/Source/WebCore/dom/Document.cpp
index f34a1c15f..2598b0f1e 100644
--- a/Source/WebCore/dom/Document.cpp
+++ b/Source/WebCore/dom/Document.cpp
@@ -1769,6 +1769,8 @@ void Document::scheduleForcedStyleRecalc()
 
 void Document::scheduleStyleRecalc()
 {
+    ASSERT(!m_renderView || !m_renderView->inHitTesting());
+
     if (m_styleRecalcTimer.isActive() || inPageCache())
         return;
 
diff --git a/Source/WebCore/dom/InlineStyleSheetOwner.cpp b/Source/WebCore/dom/InlineStyleSheetOwner.cpp
index e6e7acdb0..83574842c 100644
--- a/Source/WebCore/dom/InlineStyleSheetOwner.cpp
+++ b/Source/WebCore/dom/InlineStyleSheetOwner.cpp
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2006, 2007 Rob Buis
- * Copyright (C) 2008, 2013 Apple, Inc. All rights reserved.
+ * Copyright (C) 2008-2016 Apple, Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -46,6 +46,8 @@ InlineStyleSheetOwner::InlineStyleSheetOwner(Document& document, bool createdByP
 
 InlineStyleSheetOwner::~InlineStyleSheetOwner()
 {
+    if (m_sheet)
+        clearSheet();
 }
 
 static AuthorStyleSheets& authorStyleSheetsForElement(Element& element)