diff -r 000000000000 -r 6474c204b198 toolkit/components/typeaheadfind/nsTypeAheadFind.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/typeaheadfind/nsTypeAheadFind.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+#include "nsCycleCollectionParticipant.h"
+#include "nsISelectionController.h"
+#include "nsIController.h"
+#include "nsIControllers.h"
+#include "nsIObserver.h"
+#include "nsUnicharUtils.h"
+#include "nsIFind.h"
+#include "nsIWebBrowserFind.h"
+#include "nsWeakReference.h"
+#include "nsISelection.h"
+#include "nsIDOMRange.h"
+#include "nsIDocShellTreeItem.h"
+#include "nsITypeAheadFind.h"
+#include "nsISound.h"
+
+class nsIPresShell;
+class nsPresContext;
+
+#define TYPEAHEADFIND_NOTFOUND_WAV_URL \
+        "chrome://global/content/notfound.wav"
+
+class nsTypeAheadFind : public nsITypeAheadFind,
+                        public nsIObserver,
+                        public nsSupportsWeakReference
+{
+public:
+  nsTypeAheadFind();
+  virtual ~nsTypeAheadFind();
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_NSITYPEAHEADFIND
+  NS_DECL_NSIOBSERVER
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTypeAheadFind, nsITypeAheadFind)
+
+protected:
+  nsresult PrefsReset();
+
+  void SaveFind();
+  void PlayNotFoundSound(); 
+  nsresult GetWebBrowserFind(nsIDocShell *aDocShell,
+                             nsIWebBrowserFind **aWebBrowserFind);
+
+  void RangeStartsInsideLink(nsIDOMRange *aRange, nsIPresShell *aPresShell, 
+                             bool *aIsInsideLink, bool *aIsStartingLink);
+
+  void GetSelection(nsIPresShell *aPresShell, nsISelectionController **aSelCon, 
+                    nsISelection **aDomSel);
+  // *aNewRange may not be collapsed.  If you want to collapse it in a
+  // particular way, you need to do it yourself.
+  bool IsRangeVisible(nsIPresShell *aPresShell, nsPresContext *aPresContext,
+                        nsIDOMRange *aRange, bool aMustBeVisible, 
+                        bool aGetTopVisibleLeaf, nsIDOMRange **aNewRange,
+                        bool *aUsesIndependentSelection);
+  nsresult FindItNow(nsIPresShell *aPresShell, bool aIsLinksOnly,
+                     bool aIsFirstVisiblePreferred, bool aFindPrev,
+                     uint16_t* aResult);
+  nsresult GetSearchContainers(nsISupports *aContainer,
+                               nsISelectionController *aSelectionController,
+                               bool aIsFirstVisiblePreferred,
+                               bool aFindPrev, nsIPresShell **aPresShell,
+                               nsPresContext **aPresContext);
+
+  // Get the pres shell from mPresShell and return it only if it is still
+  // attached to the DOM window.
+  NS_HIDDEN_(already_AddRefed<nsIPresShell>) GetPresShell();
+
+  // Current find state
+  nsString mTypeAheadBuffer;
+  nsCString mNotFoundSoundURL;
+
+  // PRBools are used instead of PRPackedBools because the address of the
+  // boolean variable is getting passed into a method.
+  bool mStartLinksOnlyPref;
+  bool mCaretBrowsingOn;
+  nsCOMPtr<nsIDOMElement> mFoundLink;     // Most recent elem found, if a link
+  nsCOMPtr<nsIDOMElement> mFoundEditable; // Most recent elem found, if editable
+  nsCOMPtr<nsIDOMWindow> mCurrentWindow;
+  // mLastFindLength is the character length of the last find string.  It is used for
+  // disabling the "not found" sound when using backspace or delete
+  uint32_t mLastFindLength;
+
+  // Sound is played asynchronously on some platforms.
+  // If we destroy mSoundInterface before sound has played, it won't play
+  nsCOMPtr<nsISound> mSoundInterface;
+  bool mIsSoundInitialized;
+  
+  // where selection was when user started the find
+  nsCOMPtr<nsIDOMRange> mStartFindRange;
+  nsCOMPtr<nsIDOMRange> mSearchRange;
+  nsCOMPtr<nsIDOMRange> mStartPointRange;
+  nsCOMPtr<nsIDOMRange> mEndPointRange;
+
+  // Cached useful interfaces
+  nsCOMPtr<nsIFind> mFind;
+
+  bool mCaseSensitive;
+
+  bool EnsureFind() {
+    if (mFind) {
+      return true;
+    }
+
+    mFind = do_CreateInstance("@mozilla.org/embedcomp/rangefind;1");
+    if (!mFind) {
+      return false;
+    }
+
+    mFind->SetCaseSensitive(mCaseSensitive);
+    mFind->SetWordBreaker(nullptr);
+
+    return true;
+  }
+
+  nsCOMPtr<nsIWebBrowserFind> mWebBrowserFind;
+
+  // The focused content window that we're listening to and its cached objects
+  nsWeakPtr mDocShell;
+  nsWeakPtr mPresShell;
+  nsWeakPtr mSelectionController;
+                                          // Most recent match's controller
+};