diff -r 000000000000 -r 6474c204b198 docshell/base/nsIMarkupDocumentViewer.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docshell/base/nsIMarkupDocumentViewer.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,109 @@
+/* -*- Mode: IDL; tab-width: 4; 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/. */
+
+/**
+ * The nsIMarkupDocumentViewer
+ * This interface describes the properties of a content viewer 
+ * for a markup document - HTML or XML
+ */
+
+#include "nsISupports.idl"
+
+interface nsIDOMNode;
+
+%{C++
+template<class T> class nsCOMPtr;
+template<class T> class nsTArray;
+%}
+
+interface nsIMarkupDocumentViewer;
+
+[ref] native nsIMarkupDocumentViewerTArray(nsTArray<nsCOMPtr<nsIMarkupDocumentViewer> >);
+
+[scriptable, uuid(7aea9561-5346-401c-b40e-418688da2d0d)]
+interface nsIMarkupDocumentViewer : nsISupports
+{
+
+	/*
+	Scrolls to a given DOM content node. 
+	*/
+	void scrollToNode(in nsIDOMNode node);
+
+	/** The amount by which to scale all text. Default is 1.0. */
+	attribute float textZoom;
+
+	/** The amount by which to scale all lengths. Default is 1.0. */
+	attribute float fullZoom;
+
+	/** Disable entire author style level (including HTML presentation hints) */
+	attribute boolean authorStyleDisabled;
+
+	/**
+	 * XXX comm-central only: bug 829543. Not the Character Encoding menu in 
+     * browser!
+	 */
+	attribute ACString forceCharacterSet;
+
+	/**
+	 * XXX comm-central only: bug 829543.
+	 */
+	attribute ACString hintCharacterSet;
+
+	/**
+	 * XXX comm-central only: bug 829543.
+	 */
+	attribute int32_t hintCharacterSetSource;
+
+	//void GetCharacterSetHint(in wstring hintCharset, in int32_t charsetSource);
+
+  /**
+   * Requests the size of the content to the container.
+   */
+  void getContentSize(out long width, out long height);
+
+  /** The minimum font size  */
+  attribute long minFontSize;
+
+  /**
+   * Append |this| and all of its descendants to the given array,
+   * in depth-first pre-order traversal.
+   */
+  [noscript] void appendSubtree(in nsIMarkupDocumentViewerTArray array);
+
+  /**
+   * Set the maximum line width for the document.
+   * NOTE: This will generate a reflow!
+   *
+   * @param maxLineWidth The maximum width of any line boxes on the page,
+   *        in CSS pixels.
+   */
+  void changeMaxLineBoxWidth(in int32_t maxLineBoxWidth);
+
+  /**
+   * Instruct the refresh driver to discontinue painting until further
+   * notice.
+   */
+  void pausePainting();
+
+  /**
+   * Instruct the refresh driver to resume painting after a previous call to
+   * pausePainting().
+   */
+  void resumePainting();
+
+  /*
+   * Render the document as if being viewed on a device with the specified
+   * media type. This will cause a reflow.
+   *
+   * @param mediaType The media type to be emulated
+   */
+  void emulateMedium(in AString aMediaType);
+
+  /*
+   * Restore the viewer's natural media type
+   */
+  void stopEmulatingMedium();
+};