Separate plugin_metadata from plugin_installer, thread-safe plugin_finder

chrome/browser/ui/webui/plugins_ui.cc

Index: chrome/browser/ui/webui/plugins_ui.cc
diff --git a/chrome/browser/ui/webui/plugins_ui.cc b/chrome/browser/ui/webui/plugins_ui.cc
index 0b655ec739e25a03b26fcae50ce5fc4d961267db..01d5027140d366455a533a63d2e5c4f12222d626 100644
--- a/chrome/browser/ui/webui/plugins_ui.cc
+++ b/chrome/browser/ui/webui/plugins_ui.cc
@@ -20,7 +20,7 @@
 #include "chrome/browser/api/prefs/pref_member.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/plugins/plugin_finder.h"
-#include "chrome/browser/plugins/plugin_installer.h"
+#include "chrome/browser/plugins/plugin_metadata.h"
 #include "chrome/browser/plugins/plugin_prefs.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
@@ -163,15 +163,10 @@ class PluginsDOMHandler : public WebUIMessageHandler,
                        const content::NotificationDetails& details) OVERRIDE;
 
  private:
-  // Call this to start getting the plugins on the UI thread.
-  void GetPluginFinder();
-
-  // Called when we have a PluginFinder and need to load the list of plug-ins.
-  void LoadPlugins(PluginFinder* plugin_finder);
+  void LoadPlugins();
 
   // Called on the UI thread when the plugin information is ready.
-  void PluginsLoaded(PluginFinder* plugin_finder,
-                     const std::vector<webkit::WebPluginInfo>& plugins);
+  void PluginsLoaded(const std::vector<webkit::WebPluginInfo>& plugins);
 
   content::NotificationRegistrar registrar_;
 
@@ -221,7 +216,7 @@ void PluginsDOMHandler::RegisterMessages() {
 }
 
 void PluginsDOMHandler::HandleRequestPluginsData(const ListValue* args) {
-  GetPluginFinder();
+  LoadPlugins();
 }
 
 void PluginsDOMHandler::HandleEnablePluginMessage(const ListValue* args) {
@@ -320,37 +315,32 @@ void PluginsDOMHandler::Observe(int type,
                                 const content::NotificationSource& source,
                                 const content::NotificationDetails& details) {
   DCHECK_EQ(chrome::NOTIFICATION_PLUGIN_ENABLE_STATUS_CHANGED, type);
-  GetPluginFinder();
+  LoadPlugins();
 }
 
-void PluginsDOMHandler::GetPluginFinder() {
+void PluginsDOMHandler::LoadPlugins() {
   if (weak_ptr_factory_.HasWeakPtrs())
     return;
 
-  PluginFinder::Get(base::Bind(&PluginsDOMHandler::LoadPlugins,
-                               weak_ptr_factory_.GetWeakPtr()));
-}
-
-void PluginsDOMHandler::LoadPlugins(PluginFinder* plugin_finder) {
   PluginService::GetInstance()->GetPlugins(
       base::Bind(&PluginsDOMHandler::PluginsLoaded,
-          weak_ptr_factory_.GetWeakPtr(), plugin_finder));
+                 weak_ptr_factory_.GetWeakPtr()));
 }
 
 void PluginsDOMHandler::PluginsLoaded(
-    PluginFinder* plugin_finder,
     const std::vector<webkit::WebPluginInfo>& plugins) {
   Profile* profile = Profile::FromWebUI(web_ui());
   PluginPrefs* plugin_prefs = PluginPrefs::GetForProfile(profile);
 
   ContentSettingsPattern wildcard = ContentSettingsPattern::Wildcard();
 
+  PluginFinder* plugin_finder = PluginFinder::GetInstance();
   // Group plug-ins by identifier. This is done to be able to display
   // the plug-ins in UI in a grouped fashion.
   PluginGroups groups;
   for (size_t i = 0; i < plugins.size(); ++i) {
-    PluginInstaller* installer = plugin_finder->GetPluginInstaller(plugins[i]);
-    groups[installer->identifier()].push_back(&plugins[i]);
+    PluginMetadata* plugin = plugin_finder->GetPluginMetadata(plugins[i]);
+    groups[plugin->identifier()].push_back(&plugins[i]);
   }
 
   // Construct DictionaryValues to return to UI.
@@ -359,10 +349,10 @@ void PluginsDOMHandler::PluginsLoaded(
       it != groups.end(); ++it) {
     const std::vector<const WebPluginInfo*>& group_plugins = it->second;
     ListValue* plugin_files = new ListValue();
-    PluginInstaller* plugin_installer =
-        plugin_finder->GetPluginInstaller(*group_plugins[0]);
-    string16 group_name = plugin_installer->name();
-    std::string group_identifier = plugin_installer->identifier();
+    PluginMetadata* plugin_metadata =
+        plugin_finder->GetPluginMetadata(*group_plugins[0]);
+    string16 group_name = plugin_metadata->name();
+    std::string group_identifier = plugin_metadata->identifier();
     bool group_enabled = false;
     bool all_plugins_enabled_by_policy = true;
     bool all_plugins_disabled_by_policy = true;
@@ -437,14 +427,10 @@ void PluginsDOMHandler::PluginsLoaded(
     group_data->SetString("version", active_plugin->version);
 
 #if defined(ENABLE_PLUGIN_INSTALLATION)
-    PluginInstaller* installer =
-        plugin_finder->FindPluginWithIdentifier(group_identifier);
-    if (installer) {
-      bool out_of_date = installer->GetSecurityStatus(*active_plugin) ==
-                         PluginInstaller::SECURITY_STATUS_OUT_OF_DATE;
-      group_data->SetBoolean("critical", out_of_date);
-      group_data->SetString("update_url", installer->plugin_url().spec());
-    }
+    bool out_of_date = plugin_metadata->GetSecurityStatus(*active_plugin) ==
+        PluginMetadata::SECURITY_STATUS_OUT_OF_DATE;
+    group_data->SetBoolean("critical", out_of_date);
+    group_data->SetString("update_url", plugin_metadata->plugin_url().spec());
 #endif
 
     std::string enabled_mode;