From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001
From: Lorry Tar Creator <lorry-tar-importer@lorry>
Date: Tue, 27 Jun 2017 06:07:23 +0000
Subject: webkitgtk-2.16.5

---
 Source/WebCore/html/HTMLFrameOwnerElement.cpp | 51 ++++++++++++---------------
 1 file changed, 22 insertions(+), 29 deletions(-)

(limited to 'Source/WebCore/html/HTMLFrameOwnerElement.cpp')

diff --git a/Source/WebCore/html/HTMLFrameOwnerElement.cpp b/Source/WebCore/html/HTMLFrameOwnerElement.cpp
index 253aaee8f..3779ec96e 100644
--- a/Source/WebCore/html/HTMLFrameOwnerElement.cpp
+++ b/Source/WebCore/html/HTMLFrameOwnerElement.cpp
@@ -22,22 +22,20 @@
 #include "HTMLFrameOwnerElement.h"
 
 #include "DOMWindow.h"
+#include "ExceptionCode.h"
 #include "Frame.h"
 #include "FrameLoader.h"
 #include "RenderWidget.h"
 #include "ShadowRoot.h"
-#include <wtf/Ref.h>
-
-#if ENABLE(SVG)
-#include "ExceptionCode.h"
 #include "SVGDocument.h"
-#endif
+#include "StyleTreeResolver.h"
+#include <wtf/Ref.h>
 
 namespace WebCore {
 
 HTMLFrameOwnerElement::HTMLFrameOwnerElement(const QualifiedName& tagName, Document& document)
     : HTMLElement(tagName, document)
-    , m_contentFrame(0)
+    , m_contentFrame(nullptr)
     , m_sandboxFlags(SandboxNone)
 {
 }
@@ -46,9 +44,9 @@ RenderWidget* HTMLFrameOwnerElement::renderWidget() const
 {
     // HTMLObjectElement and HTMLEmbedElement may return arbitrary renderers
     // when using fallback content.
-    if (!renderer() || !renderer()->isWidget())
-        return 0;
-    return toRenderWidget(renderer());
+    if (!is<RenderWidget>(renderer()))
+        return nullptr;
+    return downcast<RenderWidget>(renderer());
 }
 
 void HTMLFrameOwnerElement::setContentFrame(Frame* frame)
@@ -57,7 +55,7 @@ void HTMLFrameOwnerElement::setContentFrame(Frame* frame)
     ASSERT(!m_contentFrame || m_contentFrame->ownerElement() != this);
     ASSERT(frame);
     // Disconnected frames should not be allowed to load.
-    ASSERT(inDocument());
+    ASSERT(isConnected());
     m_contentFrame = frame;
 
     for (ContainerNode* node = this; node; node = node->parentOrShadowHostNode())
@@ -109,34 +107,29 @@ void HTMLFrameOwnerElement::setSandboxFlags(SandboxFlags flags)
     m_sandboxFlags = flags;
 }
 
-bool HTMLFrameOwnerElement::isKeyboardFocusable(KeyboardEvent* event) const
+bool HTMLFrameOwnerElement::isKeyboardFocusable(KeyboardEvent& event) const
 {
     return m_contentFrame && HTMLElement::isKeyboardFocusable(event);
 }
 
-#if ENABLE(SVG)
-SVGDocument* HTMLFrameOwnerElement::getSVGDocument(ExceptionCode& ec) const
+ExceptionOr<Document&> HTMLFrameOwnerElement::getSVGDocument() const
 {
-    Document* doc = contentDocument();
-    if (doc && doc->isSVGDocument())
-        return toSVGDocument(doc);
+    auto* document = contentDocument();
+    if (is<SVGDocument>(document))
+        return *document;
     // Spec: http://www.w3.org/TR/SVG/struct.html#InterfaceGetSVGDocument
-    ec = NOT_SUPPORTED_ERR;
-    return 0;
-}
-#endif
-
-static void needsStyleRecalcCallback(Node& node, unsigned data)
-{
-    node.setNeedsStyleRecalc(static_cast<StyleChangeType>(data));
+    return Exception { NOT_SUPPORTED_ERR };
 }
 
-void HTMLFrameOwnerElement::scheduleSetNeedsStyleRecalc(StyleChangeType changeType)
+void HTMLFrameOwnerElement::scheduleinvalidateStyleAndLayerComposition()
 {
-    if (postAttachCallbacksAreSuspended())
-        queuePostAttachCallback(needsStyleRecalcCallback, *this, static_cast<unsigned>(changeType));
-    else
-        setNeedsStyleRecalc(changeType);
+    if (Style::postResolutionCallbacksAreSuspended()) {
+        RefPtr<HTMLFrameOwnerElement> element = this;
+        Style::queuePostResolutionCallback([element] {
+            element->invalidateStyleAndLayerComposition();
+        });
+    } else
+        invalidateStyleAndLayerComposition();
 }
 
 bool SubframeLoadingDisabler::canLoadFrame(HTMLFrameOwnerElement& owner)
-- 
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