Clears the "Clear auto-opening settings" button (put it in the default state,...

src/chrome/browser/options_util.cc

 // Copyright (c) 2009 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 "chrome/browser/options_util.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profile.h"
+#include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/installer/util/google_update_settings.h"
 
 // static
 void OptionsUtil::ResetToDefaults(Profile* profile) {
   // TODO(tc): It would be nice if we could generate this list automatically so
   // changes to any of the options pages doesn't require updating this list
   // manually.
@@ skipping 28 matching lines @@
     prefs::kWebKitDefaultFixedFontSize,
     prefs::kWebKitDefaultFontSize,
     prefs::kWebKitFixedFontFamily,
     prefs::kWebKitJavaEnabled,
     prefs::kWebKitJavascriptEnabled,
     prefs::kWebKitLoadsImagesAutomatically,
     prefs::kWebKitPluginsEnabled,
     prefs::kWebKitSansSerifFontFamily,
     prefs::kWebKitSerifFontFamily,
   };
+  profile->GetDownloadManager()->ResetAutoOpenFiles();
   for (size_t i = 0; i < arraysize(kUserPrefs); ++i)
     prefs->ClearPref(kUserPrefs[i]);
 
   PrefService* local_state = g_browser_process->local_state();
   // Note that we don't reset the kMetricsReportingEnabled preference here
   // because the reset will reset it to the default setting specified in Chrome
   // source, not the default setting selected by the user on the web page where
   // they downloaded Chrome. This means that if the user ever resets their
   // settings they'll either inadvertedly enable this logging or disable it.
   // One is undesirable for them, one is undesirable for us. For now, we just
@@ skipping 26 matching lines @@
   if (metrics) {
     metrics->SetUserPermitsUpload(enabled);
     if (enabled)
       metrics->Start();
     else
       metrics->Stop();
   }
 
   return enabled;
 }