Pepper Flash settings integration: add UI for "deauthorize content licenses".

chrome/browser/pepper_flash_settings_manager.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/pepper_flash_settings_manager.h"
+
+#include <vector>
+
+#include "chrome/browser/plugin_prefs.h"
+#include "content/public/browser/plugin_service.h"
+#include "googleurl/src/gurl.h"
+#include "webkit/plugins/plugin_constants.h"
+#include "webkit/plugins/webplugininfo.h"
+
+// static
+bool PepperFlashSettingsManager::IsPepperFlashInUse(
+    PluginPrefs* plugin_prefs,
+    webkit::WebPluginInfo* plugin_info) {
+  if (!plugin_prefs)
+    return false;
+
+  content::PluginService* plugin_service =
+      content::PluginService::GetInstance();
+  std::vector<webkit::WebPluginInfo> plugins;
+  plugin_service->GetPluginInfoArray(
+      GURL(), kFlashPluginSwfMimeType, false, &plugins, NULL);
+
+  for (std::vector<webkit::WebPluginInfo>::iterator iter = plugins.begin();
+       iter != plugins.end(); ++iter) {
+    if (webkit::IsPepperPlugin(*iter) && plugin_prefs->IsPluginEnabled(*iter)) {
+      if (plugin_info)
+        *plugin_info = *iter;
+      return true;
+    }
+  }
+  return false;
+}