Return a list of plugins that support clearing site data instead of the first one.

chrome/browser/plugin_data_remover_helper.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/plugin_data_remover_helper.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "chrome/browser/plugin_prefs.h"
@@ skipping 21 matching lines @@
                                    content::NotificationObserver* observer) {
   pref_.Init(pref_name, profile->GetPrefs(), observer);
   profile_ = profile;
   registrar_.Add(this, chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED,
                  content::Source<Profile>(profile));
   StartUpdate();
 }
 
 // static
 bool PluginDataRemoverHelper::IsSupported(PluginPrefs* plugin_prefs) {
-  webkit::WebPluginInfo plugin;
-  return content::PluginDataRemover::IsSupported(&plugin) &&
-      plugin_prefs->IsPluginEnabled(plugin);
+  std::vector<webkit::WebPluginInfo> plugins;
+  content::PluginDataRemover::GetSupportedPlugins(&plugins);
+  for (std::vector<webkit::WebPluginInfo>::const_iterator it = plugins.begin();
+       it != plugins.end(); ++it) {
+    if (plugin_prefs->IsPluginEnabled(*it))
+      return true;
+  }
+  return false;
 }
 
 void PluginDataRemoverHelper::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED) {
     StartUpdate();
   } else {
     NOTREACHED();
   }
 }
 
 void PluginDataRemoverHelper::StartUpdate() {
   PluginService::GetInstance()->GetPlugins(
       base::Bind(&PluginDataRemoverHelper::GotPlugins, factory_.GetWeakPtr(),
                  PluginPrefs::GetForProfile(profile_)));
 }
 
 void PluginDataRemoverHelper::GotPlugins(
     scoped_refptr<PluginPrefs> plugin_prefs,
     const std::vector<webkit::WebPluginInfo>& plugins) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   bool supported = IsSupported(plugin_prefs);
   // Set the value on the PrefService instead of through the PrefMember to
   // notify observers if it changed.
   profile_->GetPrefs()->SetBoolean(pref_.GetPrefName().c_str(), supported);
 }