Initial work on a new <view> element backed by a mojo::View.

sky/engine/core/html/HTMLIFrameElement.cpp

Index: sky/engine/core/html/HTMLIFrameElement.cpp
diff --git a/sky/engine/core/html/HTMLIFrameElement.cpp b/sky/engine/core/html/HTMLIFrameElement.cpp
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+++ b/sky/engine/core/html/HTMLIFrameElement.cpp
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+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/html/HTMLIFrameElement.h"
+
+#include "core/HTMLNames.h"
+#include "core/frame/LocalFrame.h"
+#include "core/html/parser/HTMLParserIdioms.h"
+#include "core/loader/FrameLoaderClient.h"
+#include "core/rendering/RenderRemote.h"
+
+namespace blink {
+
+PassRefPtr<HTMLIFrameElement> HTMLIFrameElement::create(Document& document)
+{
+    return adoptRef(new HTMLIFrameElement(document));
+}
+
+HTMLIFrameElement::HTMLIFrameElement(Document& document)
+    : HTMLElement(HTMLNames::iframeTag, document)
+{
+}
+
+HTMLIFrameElement::~HTMLIFrameElement()
+{
+}
+
+Node::InsertionNotificationRequest HTMLIFrameElement::insertedInto(ContainerNode* insertionPoint)
+{
+    InsertionNotificationRequest result = HTMLElement::insertedInto(insertionPoint);
+    if (insertionPoint->inDocument())
+        createView();
+    return result;
+}
+
+void HTMLIFrameElement::removedFrom(ContainerNode* insertionPoint)
+{
+    HTMLElement::removedFrom(insertionPoint);
+    if (insertionPoint->inDocument()) {
+        // TODO(mpcomplete): Tear down the mojo View.
+    }
+}
+
+RenderObject* HTMLIFrameElement::createRenderer(RenderStyle* style)
+{
+    return new RenderRemote(this);
+}
+
+void HTMLIFrameElement::createView()
+{
+    String urlString = stripLeadingAndTrailingHTMLSpaces(getAttribute(HTMLNames::srcAttr));
+    if (urlString.isEmpty())
+        urlString = blankURL().string();
+
+    LocalFrame* parentFrame = document().frame();
+    if (!parentFrame)
+        return;
+
+    KURL url = document().completeURL(urlString);
+    parentFrame->loaderClient()->createView(url);
+}
+
+}