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diff --git a/embed/mozilla/EphyHeaderSniffer.cpp b/embed/mozilla/EphyHeaderSniffer.cpp
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+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Chimera code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   David Hyatt  <hyatt@netscape.com>
+ *   Simon Fraser <sfraser@netscape.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "EphyHeaderSniffer.h"
+//#include "UMacUnicode.h"
+
+//#include "UCustomNavServicesDialogs.h"
+
+#include "netCore.h"
+
+#include "nsIChannel.h"
+#include "nsIHttpChannel.h"
+#include "nsIURL.h"
+#include "nsIStringEnumerator.h"
+#include "nsIPrefService.h"
+#include "nsIMIMEService.h"
+#include "nsIMIMEInfo.h"
+#include "nsIDOMHTMLDocument.h"
+#include "nsIDownload.h"
+//#include "nsILocalFileMac.h"
+
+const char* const persistContractID = "@mozilla.org/embedding/browser/nsWebBrowserPersist;1";
+
+EphyHeaderSniffer::EphyHeaderSniffer(nsIWebBrowserPersist* aPersist, nsIFile* aFile, nsIURI* aURL,
+                nsIDOMDocument* aDocument, nsIInputStream* aPostData,
+                const nsAString& aSuggestedFilename, PRBool aBypassCache, ESaveFormat aSaveFormat)
+: mPersist(aPersist)
+, mTmpFile(aFile)
+, mURL(aURL)
+, mDocument(aDocument)
+, mPostData(aPostData)
+, mDefaultFilename(aSuggestedFilename)
+, mBypassCache(aBypassCache)
+, mSaveFormat(aSaveFormat)
+{
+}
+
+EphyHeaderSniffer::~EphyHeaderSniffer()
+{
+}
+
+NS_IMPL_ISUPPORTS1(EphyHeaderSniffer, nsIWebProgressListener)
+
+#pragma mark -
+
+// Implementation of nsIWebProgressListener
+/* void onStateChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aStateFlags, in unsigned long aStatus); */
+NS_IMETHODIMP 
+EphyHeaderSniffer::OnStateChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRUint32 aStateFlags, 
+                                PRUint32 aStatus)
+{  
+  if (aStateFlags & nsIWebProgressListener::STATE_START)
+  {
+    nsCOMPtr<nsIWebBrowserPersist> kungFuDeathGrip(mPersist);   // be sure to keep it alive while we save
+                                                                // since it owns us as a listener
+    nsCOMPtr<nsIWebProgressListener> kungFuSuicideGrip(this);   // and keep ourselves alive
+    
+    nsresult rv;
+    nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest, &rv);
+    if (!channel) return rv;
+    channel->GetContentType(mContentType);
+    
+    nsCOMPtr<nsIURI> origURI;
+    channel->GetOriginalURI(getter_AddRefs(origURI));
+    
+    // Get the content-disposition if we're an HTTP channel.
+    nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
+    if (httpChannel)
+      httpChannel->GetResponseHeader(nsCAutoString("content-disposition"), mContentDisposition);
+    
+    mPersist->CancelSave();
+    PRBool exists;
+    mTmpFile->Exists(&exists);
+    if (exists)
+        mTmpFile->Remove(PR_FALSE);
+
+    rv = PerformSave(origURI, mSaveFormat);
+    if (NS_FAILED(rv))
+    {
+      // put up some UI
+      
+    }
+  }
+  return NS_OK;
+}
+
+/* void onProgressChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aCurSelfProgress, in long aMaxSelfProgress, in long aCurTotalProgress, in long aMaxTotalProgress); */
+NS_IMETHODIMP 
+EphyHeaderSniffer::OnProgressChange(nsIWebProgress *aWebProgress, 
+           nsIRequest *aRequest, 
+           PRInt32 aCurSelfProgress, 
+           PRInt32 aMaxSelfProgress, 
+           PRInt32 aCurTotalProgress, 
+           PRInt32 aMaxTotalProgress)
+{
+  return NS_OK;
+}
+
+/* void onLocationChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsIURI location); */
+NS_IMETHODIMP 
+EphyHeaderSniffer::OnLocationChange(nsIWebProgress *aWebProgress, 
+           nsIRequest *aRequest, 
+           nsIURI *location)
+{
+  return NS_OK;
+}
+
+/* void onStatusChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsresult aStatus, in wstring aMessage); */
+NS_IMETHODIMP 
+EphyHeaderSniffer::OnStatusChange(nsIWebProgress *aWebProgress, 
+               nsIRequest *aRequest, 
+               nsresult aStatus, 
+               const PRUnichar *aMessage)
+{
+  return NS_OK;
+}
+
+/* void onSecurityChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long state); */
+NS_IMETHODIMP 
+EphyHeaderSniffer::OnSecurityChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRUint32 state)
+{
+  return NS_OK;
+}
+
+#pragma mark -
+
+static ESaveFormat SaveFormatFromPrefValue(PRInt32 inPrefValue)
+{
+  switch (inPrefValue)
+  {
+    case 0:   return eSaveFormatHTMLComplete;
+    default:  // fall through
+    case 1:   return eSaveFormatHTML;
+    case 2:   return eSaveFormatPlainText;
+  }
+}
+
+static PRInt32 PrefValueFromSaveFormat(ESaveFormat inSaveFormat)
+{
+  switch (inSaveFormat)
+  {
+    case eSaveFormatPlainText:    return 2;
+    default:  // fall through
+    case eSaveFormatHTML:         return 1;
+    case eSaveFormatHTMLComplete: return 0;
+  }
+}
+
+nsresult EphyHeaderSniffer::PerformSave(nsIURI* inOriginalURI, const ESaveFormat inSaveFormat)
+{
+    nsresult rv;
+    // Are we an HTML document? If so, we will want to append an accessory view to
+    // the save dialog to provide the user with the option of doing a complete
+    // save vs. a single file save.
+    PRBool isHTML = (mDocument && mContentType.Equals("text/html") ||
+                     mContentType.Equals("text/xml") ||
+                     mContentType.Equals("application/xhtml+xml"));
+    
+    // Next find out the directory that we should start in.
+    nsCOMPtr<nsIPrefService> prefs(do_GetService("@mozilla.org/preferences-service;1", &rv));
+    if (!prefs)
+        return rv;
+    nsCOMPtr<nsIPrefBranch> dirBranch;
+    prefs->GetBranch("browser.download.", getter_AddRefs(dirBranch));
+    PRInt32 filterIndex = 0;
+    if (inSaveFormat != eSaveFormatUnspecified) {
+      filterIndex = PrefValueFromSaveFormat(inSaveFormat);
+    }
+    else if (dirBranch) {
+        nsresult rv = dirBranch->GetIntPref("save_converter_index", &filterIndex);
+        if (NS_FAILED(rv))
+            filterIndex = 0;
+    }
+
+    // We need to figure out what file name to use.
+/*    nsAutoString defaultFileName;
+    if (!mContentDisposition.IsEmpty()) {
+        // (1) Use the HTTP header suggestion.
+        PRInt32 index = mContentDisposition.Find("filename=");
+        if (index >= 0) {
+            // Take the substring following the prefix.
+            index += 9;
+            nsCAutoString filename;
+            mContentDisposition.Right(filename, mContentDisposition.Length() - index);
+            defaultFileName = NS_ConvertUTF8toUCS2(filename);
+        }
+    }
+    
+    if (defaultFileName.IsEmpty()) {
+        nsCOMPtr<nsIURL> url(do_QueryInterface(mURL));
+        if (url) {
+            nsCAutoString fileNameCString;
+            url->GetFileName(fileNameCString); // (2) For file URLs, use the file name.
+            defaultFileName = NS_ConvertUTF8toUCS2(fileNameCString);
+        }
+    }
+    
+    if (defaultFileName.IsEmpty() && mDocument && isHTML) {
+        nsCOMPtr<nsIDOMHTMLDocument> htmlDoc(do_QueryInterface(mDocument));
+        if (htmlDoc)
+            htmlDoc->GetTitle(defaultFileName); // (3) Use the title of the document.
+    }
+    
+    if (defaultFileName.IsEmpty()) {
+        // (4) Use the caller provided name.
+        defaultFileName = mDefaultFilename;
+    }
+
+    if (defaultFileName.IsEmpty() && mURL) {
+        // (5) Use the host.
+        nsCAutoString hostName;
+        mURL->GetHost(hostName);
+        defaultFileName = NS_ConvertUTF8toUCS2(hostName);
+    }
+    
+    // One last case to handle about:blank and other fruity untitled pages.
+    if (defaultFileName.IsEmpty())
+        defaultFileName.AssignWithConversion("untitled");
+        
+    // Validate the file name to ensure legality.
+    for (PRUint32 i = 0; i < defaultFileName.Length(); i++)
+        if (defaultFileName[i] == ':' || defaultFileName[i] == '/')
+            defaultFileName.SetCharAt(i, PRUnichar(' '));
+            
+    // Make sure the appropriate extension is appended to the suggested file name.
+    nsCOMPtr<nsIURI> fileURI(do_CreateInstance("@mozilla.org/network/standard-url;1"));
+    nsCOMPtr<nsIURL> fileURL(do_QueryInterface(fileURI, &rv));
+    if (!fileURL)
+        return rv;
+     
+    fileURL->SetFilePath(NS_ConvertUCS2toUTF8(defaultFileName));
+    
+    nsCAutoString fileExtension;
+    fileURL->GetFileExtension(fileExtension);
+    
+    PRBool setExtension = PR_FALSE;
+    if (mContentType.Equals("text/html")) {
+        if (fileExtension.IsEmpty() || (!fileExtension.Equals("htm") && !fileExtension.Equals("html"))) {
+            defaultFileName.AppendWithConversion(".html");
+            setExtension = PR_TRUE;
+        }
+    }
+    
+    if (!setExtension && fileExtension.IsEmpty()) {
+        nsCOMPtr<nsIMIMEService> mimeService(do_GetService("@mozilla.org/mime;1", &rv));
+        if (!mimeService)
+            return rv;
+        nsCOMPtr<nsIMIMEInfo> mimeInfo;
+        rv = mimeService->GetFromTypeAndExtension(mContentType.get(), nsnull, getter_AddRefs(mimeInfo));
+        if (!mimeInfo)
+          return rv;
+
+        nsCOMPtr<nsIUTF8StringEnumerator> extensions;
+        mimeInfo->GetFileExtensions(getter_AddRefs(extensions));
+        
+        PRBool hasMore;
+        extensions->HasMore(&hasMore);
+        if (hasMore) {
+            nsCAutoString ext;
+            extensions->GetNext(ext);
+            defaultFileName.Append(PRUnichar('.'));
+            defaultFileName.Append(NS_ConvertUTF8toUCS2(ext));
+        }
+    }
+
+    // Now it's time to pose the save dialog.
+    FSSpec       destFileSpec;
+    bool         isReplacing = false;
+
+    {
+        Str255          defaultName;
+        bool            result;
+
+        CPlatformUCSConversion::GetInstance()->UCSToPlatform(defaultFileName, defaultName);
+#ifndef XP_MACOSX
+        char            tempBuf1[256], tempBuf2[64];
+        ::CopyPascalStringToC(defaultName, tempBuf1);        
+        ::CopyCStringToPascal(NS_TruncNodeName(tempBuf1, tempBuf2), defaultName);
+#endif
+        if (isHTML) {
+            ESaveFormat saveFormat = SaveFormatFromPrefValue(filterIndex);
+            UNavServicesDialogs::LCustomFileDesignator customDesignator;
+            result = customDesignator.AskDesignateFile(defaultName, saveFormat);
+            if (!result)
+                return NS_OK;       // user canceled
+            filterIndex = PrefValueFromSaveFormat(saveFormat);
+            customDesignator.GetFileSpec(destFileSpec);
+            isReplacing = customDesignator.IsReplacing();
+        }
+        else {
+            UNavServicesDialogs::LFileDesignator stdDesignator;
+            result = stdDesignator.AskDesignateFile(defaultName);
+            if (!result)
+                return NS_OK;       // user canceled
+            stdDesignator.GetFileSpec(destFileSpec);
+            isReplacing = stdDesignator.IsReplacing();        
+        }
+
+        // After the dialog is dismissed, process all activation an update events right away.
+        // The save dialog code calls UDesktop::Activate after dismissing the dialog. All that
+        // does is activate the now frontmost LWindow which was behind the dialog. It does not
+        // remove the activate event from the queue. If that event is not processed and removed
+        // before we show the progress window, bad things happen. Specifically, the progress
+        // dialog will show in front and then, shortly thereafter, the window which was behind this save
+        // dialog will be moved to the front.
+        
+        if (LEventDispatcher::GetCurrentEventDispatcher()) { // Can this ever be NULL?
+            EventRecord theEvent;
+            while (::WaitNextEvent(updateMask | activMask, &theEvent, 0, nil))
+                LEventDispatcher::GetCurrentEventDispatcher()->DispatchEvent(theEvent);
+        }
+    }
+
+    // only save the pref if the frontend didn't specify a format
+    if (inSaveFormat == eSaveFormatUnspecified && isHTML)
+      dirBranch->SetIntPref("save_converter_index", filterIndex);
+
+    nsCOMPtr<nsILocalFile> destFile;
+    
+    rv = NS_NewLocalFileWithFSSpec(&destFileSpec, PR_TRUE, getter_AddRefs(destFile));
+    if (NS_FAILED(rv))
+      return rv;
+    
+    if (isReplacing) {
+      PRBool exists;
+      rv = destFile->Exists(&exists);
+      if (NS_SUCCEEDED(rv) && exists)
+        rv = destFile->Remove(PR_TRUE);
+      if (NS_FAILED(rv))
+        return rv;
+    }
+
+    // if the user chose plain text, set the content type
+    if (isHTML && filterIndex == 2)
+      mContentType = "text/plain";
+    
+    nsCOMPtr<nsISupports> sourceData;
+    if (isHTML && filterIndex != 1)
+        sourceData = do_QueryInterface(mDocument);    // HTML complete
+    else
+        sourceData = do_QueryInterface(mURL);         // HTML or text only
+
+    return InitiateDownload(sourceData, destFile, inOriginalURI);*/
+}
+
+// inOriginalURI is always a URI. inSourceData can be an nsIURI or an nsIDOMDocument, depending
+// on what we're saving. It's that way for nsIWebBrowserPersist.
+nsresult EphyHeaderSniffer::InitiateDownload(nsISupports* inSourceData, nsILocalFile* inDestFile, nsIURI* inOriginalURI)
+{
+  nsresult rv = NS_OK;
+
+  nsCOMPtr<nsIWebBrowserPersist> webPersist = do_CreateInstance(persistContractID, &rv);
+  if (NS_FAILED(rv)) return rv;
+  
+  nsCOMPtr<nsIURI> sourceURI = do_QueryInterface(inSourceData);
+
+  PRInt64 timeNow = PR_Now();
+  
+  nsAutoString fileDisplayName;
+  inDestFile->GetLeafName(fileDisplayName);
+  
+  nsCOMPtr<nsIDownload> downloader = do_CreateInstance(NS_DOWNLOAD_CONTRACTID);
+  // dlListener attaches to its progress dialog here, which gains ownership
+  rv = downloader->Init(inOriginalURI, inDestFile, fileDisplayName.get(), nsnull, timeNow, webPersist);
+  if (NS_FAILED(rv)) return rv;
+    
+  PRInt32 flags = nsIWebBrowserPersist::PERSIST_FLAGS_NO_CONVERSION | 
+                  nsIWebBrowserPersist::PERSIST_FLAGS_REPLACE_EXISTING_FILES;
+  if (mBypassCache)
+    flags |= nsIWebBrowserPersist::PERSIST_FLAGS_BYPASS_CACHE;
+  else
+    flags |= nsIWebBrowserPersist::PERSIST_FLAGS_FROM_CACHE;
+
+  webPersist->SetPersistFlags(flags);
+    
+  if (sourceURI)
+  {
+    rv = webPersist->SaveURI(sourceURI, nsnull, nsnull, mPostData, nsnull, inDestFile);
+  }
+  else
+  {
+    nsCOMPtr<nsIDOMDocument> domDoc = do_QueryInterface(inSourceData, &rv);
+    if (!domDoc) return rv;  // should never happen
+    
+    PRInt32 encodingFlags = 0;
+    nsCOMPtr<nsILocalFile> filesFolder;
+    
+    if (!mContentType.Equals("text/plain")) {
+      // Create a local directory in the same dir as our file.  It
+      // will hold our associated files.
+      filesFolder = do_CreateInstance("@mozilla.org/file/local;1");
+      nsAutoString unicodePath;
+      inDestFile->GetPath(unicodePath);
+      filesFolder->InitWithPath(unicodePath);
+      
+      nsAutoString leafName;
+      filesFolder->GetLeafName(leafName);
+      nsAutoString nameMinusExt(leafName);
+      PRInt32 index = nameMinusExt.RFind(".");
+      if (index >= 0)
+          nameMinusExt.Left(nameMinusExt, index);
+      nameMinusExt += NS_LITERAL_STRING(" Files"); // XXXdwh needs to be localizable!
+      filesFolder->SetLeafName(nameMinusExt);
+      PRBool exists = PR_FALSE;
+      filesFolder->Exists(&exists);
+      if (!exists) {
+          rv = filesFolder->Create(nsILocalFile::DIRECTORY_TYPE, 0755);
+          if (NS_FAILED(rv))
+            return rv;
+      }
+    }
+    else
+    {
+      encodingFlags |= nsIWebBrowserPersist::ENCODE_FLAGS_FORMATTED |
+                        nsIWebBrowserPersist::ENCODE_FLAGS_ABSOLUTE_LINKS |
+                        nsIWebBrowserPersist::ENCODE_FLAGS_NOFRAMES_CONTENT;
+    }
+    rv = webPersist->SaveDocument(domDoc, inDestFile, filesFolder, mContentType.get(), encodingFlags, 80);
+  }
+  
+  return rv;
+}