diff -r 000000000000 -r 6474c204b198 layout/generic/nsSubDocumentFrame.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/generic/nsSubDocumentFrame.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,152 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 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/. */
+
+#ifndef NSSUBDOCUMENTFRAME_H_
+#define NSSUBDOCUMENTFRAME_H_
+
+#include "mozilla/Attributes.h"
+#include "nsLeafFrame.h"
+#include "nsIReflowCallback.h"
+#include "nsFrameLoader.h"
+
+/******************************************************************************
+ * nsSubDocumentFrame
+ *****************************************************************************/
+class nsSubDocumentFrame : public nsLeafFrame,
+                           public nsIReflowCallback
+{
+public:
+  NS_DECL_QUERYFRAME_TARGET(nsSubDocumentFrame)
+  NS_DECL_FRAMEARENA_HELPERS
+
+  nsSubDocumentFrame(nsStyleContext* aContext);
+
+#ifdef DEBUG_FRAME_DUMP
+  void List(FILE* out = stderr, const char* aPrefix = "", uint32_t aFlags = 0) const MOZ_OVERRIDE;
+  virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
+#endif
+
+  NS_DECL_QUERYFRAME
+
+  virtual nsIAtom* GetType() const MOZ_OVERRIDE;
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
+  {
+    // nsLeafFrame is already eReplacedContainsBlock, but that's somewhat bogus
+    return nsLeafFrame::IsFrameOfType(aFlags &
+      ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
+  }
+
+  virtual void Init(nsIContent*      aContent,
+                    nsIFrame*        aParent,
+                    nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;
+
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
+
+  virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
+  virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
+
+  virtual mozilla::IntrinsicSize GetIntrinsicSize() MOZ_OVERRIDE;
+  virtual nsSize  GetIntrinsicRatio() MOZ_OVERRIDE;
+
+  virtual nsSize ComputeAutoSize(nsRenderingContext *aRenderingContext,
+                                 nsSize aCBSize, nscoord aAvailableWidth,
+                                 nsSize aMargin, nsSize aBorder,
+                                 nsSize aPadding, bool aShrinkWrap) MOZ_OVERRIDE;
+
+  virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
+                             nsSize aCBSize, nscoord aAvailableWidth,
+                             nsSize aMargin, nsSize aBorder, nsSize aPadding,
+                             uint32_t aFlags) MOZ_OVERRIDE;
+
+  virtual nsresult Reflow(nsPresContext*          aPresContext,
+                          nsHTMLReflowMetrics&     aDesiredSize,
+                          const nsHTMLReflowState& aReflowState,
+                          nsReflowStatus&          aStatus) MOZ_OVERRIDE;
+
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) MOZ_OVERRIDE;
+
+  virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+                                    nsIAtom* aAttribute,
+                                    int32_t aModType) MOZ_OVERRIDE;
+
+  // if the content is "visibility:hidden", then just hide the view
+  // and all our contents. We don't extend "visibility:hidden" to
+  // the child content ourselves, since it belongs to a different
+  // document and CSS doesn't inherit in there.
+  virtual bool SupportsVisibilityHidden() MOZ_OVERRIDE { return false; }
+
+#ifdef ACCESSIBILITY
+  virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
+#endif
+
+  nsresult GetDocShell(nsIDocShell **aDocShell);
+  nsresult BeginSwapDocShells(nsIFrame* aOther);
+  void EndSwapDocShells(nsIFrame* aOther);
+  nsView* EnsureInnerView();
+  nsIFrame* GetSubdocumentRootFrame();
+  nsIntSize GetSubdocumentSize();
+
+  // nsIReflowCallback
+  virtual bool ReflowFinished() MOZ_OVERRIDE;
+  virtual void ReflowCallbackCanceled() MOZ_OVERRIDE;
+
+  bool ShouldClipSubdocument()
+  {
+    nsFrameLoader* frameLoader = FrameLoader();
+    return !frameLoader || frameLoader->ShouldClipSubdocument();
+  }
+
+  bool ShouldClampScrollPosition()
+  {
+    nsFrameLoader* frameLoader = FrameLoader();
+    return !frameLoader || frameLoader->ShouldClampScrollPosition();
+  }
+
+  /**
+   * Return true if pointer event hit-testing should be allowed to target
+   * content in the subdocument.
+   */
+  bool PassPointerEventsToChildren();
+
+protected:
+  friend class AsyncFrameInit;
+
+  // Helper method to look up the HTML marginwidth & marginheight attributes
+  nsIntSize GetMarginAttributes();
+
+  nsFrameLoader* FrameLoader();
+
+  bool IsInline() { return mIsInline; }
+
+  virtual nscoord GetIntrinsicWidth() MOZ_OVERRIDE;
+  virtual nscoord GetIntrinsicHeight() MOZ_OVERRIDE;
+
+  // Show our document viewer. The document viewer is hidden via a script
+  // runner, so that we can save and restore the presentation if we're
+  // being reframed.
+  void ShowViewer();
+
+  /* Obtains the frame we should use for intrinsic size information if we are
+   * an HTML <object>, <embed> or <applet> (a replaced element - not <iframe>)
+   * and our sub-document has an intrinsic size. The frame returned is the
+   * frame for the document element of the document we're embedding.
+   *
+   * Called "Obtain*" and not "Get*" because of comment on GetDocShell that
+   * says it should be called ObtainDocShell because of it's side effects.
+   */
+  nsIFrame* ObtainIntrinsicSizeFrame();
+
+  nsRefPtr<nsFrameLoader> mFrameLoader;
+  nsView* mInnerView;
+  bool mIsInline;
+  bool mPostedReflowCallback;
+  bool mDidCreateDoc;
+  bool mCallingShow;
+};
+
+#endif /* NSSUBDOCUMENTFRAME_H_ */