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

chrome/browser/plugin_status_pref_setter.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_status_pref_setter.h"
+
+#include "base/bind.h"
+#include "chrome/browser/plugin_prefs.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/notification_source.h"
+#include "content/public/browser/plugin_service.h"
+#include "webkit/plugins/webplugininfo.h"
+
+using content::BrowserThread;
+using content::PluginService;
+
+PluginStatusPrefSetter::Client::Client() {
+}
+
+PluginStatusPrefSetter::Client::~Client() {
+}
+
+void PluginStatusPrefSetter::Client::Init(
+    PrefService* prefs,
+    content::NotificationObserver* observer) {
+  pref_.Init(GetPrefName(), prefs, observer);
+}
+
+PluginStatusPrefSetter::PluginStatusPrefSetter()
+    : profile_(NULL),
+      ALLOW_THIS_IN_INITIALIZER_LIST(factory_(this)) {}
+
+PluginStatusPrefSetter::~PluginStatusPrefSetter() {
+}
+
+void PluginStatusPrefSetter::Init(const std::vector<Client*>& clients,
+                                  Profile* profile,
+                                  content::NotificationObserver* observer) {
+  clients_ = clients;
+  for (std::vector<Client*>::iterator iter = clients_.begin();
+       iter != clients_.end(); ++iter) {
+    (*iter)->Init(profile->GetPrefs(), observer);
+  }
+  profile_ = profile;
+  registrar_.Add(this, chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED,
+                 content::Source<Profile>(profile));
+  StartUpdate();
+}
+
+void PluginStatusPrefSetter::Observe(
+    int type,
+    const content::NotificationSource& source,
+    const content::NotificationDetails& details) {
+  if (type == chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED) {
+    StartUpdate();
+  } else {
+    NOTREACHED();
+  }
+}
+
+void PluginStatusPrefSetter::StartUpdate() {
+  PluginService::GetInstance()->GetPlugins(
+      base::Bind(&PluginStatusPrefSetter::GotPlugins, factory_.GetWeakPtr(),
+                 PluginPrefs::GetForProfile(profile_)));
+}
+
+void PluginStatusPrefSetter::GotPlugins(
+    scoped_refptr<PluginPrefs> plugin_prefs,
+    const std::vector<webkit::WebPluginInfo>& /* plugins */) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  for (std::vector<Client*>::iterator iter = clients_.begin();
+       iter != clients_.end(); ++iter) {
+    // Set the value on the PrefService instead of through the PrefMember in
+    // Client to notify observers if it changed.
+    profile_->GetPrefs()->SetBoolean(
+        (*iter)->GetPrefName(), (*iter)->CalculatePrefValue(plugin_prefs));
+  }
+}