Web MIDI: reset button in permission bubble does not work

chrome/browser/ui/content_settings/content_setting_bubble_model.cc

 // Copyright (c) 2012 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/ui/content_settings/content_setting_bubble_model.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 1181 matching lines @@
     set_custom_link(l10n_util::GetStringUTF8(
         IDS_MIDI_SYSEX_BUBBLE_REQUIRE_RELOAD_TO_CLEAR));
   }
 }
 
 void ContentSettingMidiSysExBubbleModel::OnCustomLinkClicked() {
   if (!web_contents())
     return;
   // Reset this embedder's entry to default for each of the requesting
   // origins currently on the page.
+  const GURL& embedder_url = web_contents()->GetURL();
   TabSpecificContentSettings* content_settings =
       TabSpecificContentSettings::FromWebContents(web_contents());
   const ContentSettingsUsagesState::StateMap& state_map =
       content_settings->midi_usages_state().state_map();
   HostContentSettingsMap* settings_map =
       profile()->GetHostContentSettingsMap();
 
   for (ContentSettingsUsagesState::StateMap::const_iterator it =
        state_map.begin(); it != state_map.end(); ++it) {
     settings_map->SetContentSetting(
         ContentSettingsPattern::FromURLNoWildcard(it->first),
-        ContentSettingsPattern::Wildcard(),
+        ContentSettingsPattern::FromURLNoWildcard(embedder_url),
         CONTENT_SETTINGS_TYPE_MIDI_SYSEX,
         std::string(),
         CONTENT_SETTING_DEFAULT);
   }
 }
 
 // static
 ContentSettingBubbleModel*
     ContentSettingBubbleModel::CreateContentSettingBubbleModel(
         Delegate* delegate,
@@ skipping 81 matching lines @@
   if (type == content::NOTIFICATION_WEB_CONTENTS_DESTROYED) {
     DCHECK_EQ(web_contents_,
               content::Source<WebContents>(source).ptr());
     web_contents_ = NULL;
   } else {
     DCHECK_EQ(chrome::NOTIFICATION_PROFILE_DESTROYED, type);
     DCHECK_EQ(profile_, content::Source<Profile>(source).ptr());
     profile_ = NULL;
   }
 }