Policy: Re-enabled plugin still disabled

webkit/glue/plugins/plugin_group.cc

Index: webkit/glue/plugins/plugin_group.cc
diff --git a/webkit/glue/plugins/plugin_group.cc b/webkit/glue/plugins/plugin_group.cc
index 668621d87875cf7bb23cf477b1f44a1acae66b29..197466ff9b7e5cb41530d4ccc85e78fe52508a76 100644
--- a/webkit/glue/plugins/plugin_group.cc
+++ b/webkit/glue/plugins/plugin_group.cc
@@ -112,8 +112,10 @@ void PluginGroup::InitFrom(const PluginGroup& other) {
   for (size_t i = 0; i < other.version_ranges_.size(); ++i)
     version_ranges_.push_back(other.version_ranges_[i]);
   DCHECK_EQ(other.web_plugin_infos_.size(), other.web_plugin_positions_.size());
-  for (size_t i = 0; i < other.web_plugin_infos_.size(); ++i)
-    AddPlugin(other.web_plugin_infos_[i], other.web_plugin_positions_[i]);
+  std::list<WebPluginInfo>::const_iterator it = other.web_plugin_infos_.begin();
+  std::vector<int>::const_iterator itprio = other.web_plugin_positions_.begin();
+  for (; it != other.web_plugin_infos_.end(); ++it, ++itprio)
+    AddPlugin(*it, *itprio);
   if (!version_.get())
     version_.reset(Version::GetVersionFromString("0"));
 }
@@ -235,20 +237,31 @@ void PluginGroup::UpdateDescriptionAndVersion(const WebPluginInfo& plugin) {
     version_.reset(Version::GetVersionFromString("0"));
 }
 
-void PluginGroup::AddPlugin(const WebPluginInfo& plugin, int position) {
+WebPluginInfo* PluginGroup::AddPlugin(
+    const WebPluginInfo& plugin, int position) {
   // Check if this group already contains this plugin.
-  for (size_t i = 0; i < web_plugin_infos_.size(); ++i) {
-    if (web_plugin_infos_[i].name == plugin.name &&
-        web_plugin_infos_[i].version == plugin.version &&
-        FilePath::CompareEqualIgnoreCase(web_plugin_infos_[i].path.value(),
+  for (std::list<WebPluginInfo>::iterator it = web_plugin_infos_.begin();
+       it != web_plugin_infos_.end(); ++it) {
+    if (it->name == plugin.name &&
+        it->version == plugin.version &&
+        FilePath::CompareEqualIgnoreCase(it->path.value(),
                                          plugin.path.value())) {
-      return;
+      return NULL;
     }
   }
   web_plugin_infos_.push_back(plugin);
   // The position of this plugin relative to the global list of plugins.
   web_plugin_positions_.push_back(position);
   UpdateActivePlugin(plugin);
+  return &web_plugin_infos_.back();
+}
+
+std::list<WebPluginInfo>& PluginGroup::GetPlugins() {
+  return web_plugin_infos_;
+}
+
+std::vector<int>& PluginGroup::GetPluginPositions() {
+  return web_plugin_positions_;
 }
 
 string16 PluginGroup::GetGroupName() const {
@@ -256,7 +269,7 @@ string16 PluginGroup::GetGroupName() const {
     return group_name_;
   DCHECK_EQ(1u, web_plugin_infos_.size());
   FilePath::StringType path =
-      web_plugin_infos_[0].path.BaseName().RemoveExtension().value();
+      web_plugin_infos_.front().path.BaseName().RemoveExtension().value();
 #if defined(OS_POSIX)
   return UTF8ToUTF16(path);
 #elif defined(OS_WIN)
@@ -283,9 +296,11 @@ DictionaryValue* PluginGroup::GetDataForUI() const {
   bool group_disabled_by_policy = IsPluginNameDisabledByPolicy(name);
   ListValue* plugin_files = new ListValue();
   bool all_plugins_disabled_by_policy = true;
-  for (size_t i = 0; i < web_plugin_infos_.size(); ++i) {
-    const WebPluginInfo& web_plugin = web_plugin_infos_[i];
-    int priority = web_plugin_positions_[i];
+  std::vector<int>::const_iterator itprio = web_plugin_positions_.begin();
+  for (std::list<WebPluginInfo>::const_iterator it = web_plugin_infos_.begin();
+       it != web_plugin_infos_.end(); ++it, ++itprio) {
+    const WebPluginInfo& web_plugin = *it;
+    int priority = *itprio;
     DictionaryValue* plugin_file = new DictionaryValue();
     plugin_file->SetString("name", web_plugin.name);
     plugin_file->SetString("description", web_plugin.desc);
@@ -369,37 +384,50 @@ bool PluginGroup::IsVulnerable() const {
 }
 
 void PluginGroup::DisableOutdatedPlugins() {
-  description_ = string16();
-  enabled_ = false;
+ bool first_enabled = true;
+
+ for (std::list<WebPluginInfo>::iterator it = web_plugin_infos_.begin();
+      it != web_plugin_infos_.end(); ++it) {
+   scoped_ptr<Version> version(CreateVersionFromString(it->version));
+   if (version.get()) {
+     bool plugin_is_outdated = false;
+     for (size_t i = 0; i < version_ranges_.size(); ++i) {
+       if (IsPluginOutdated(*version, version_ranges_[i])) {
+         NPAPI::PluginList::Singleton()->DisablePlugin(it->path, false);
+         plugin_is_outdated = true;
+         break;
+       }
+     }
+     if (!plugin_is_outdated && first_enabled) {
+       first_enabled = false;
+       UpdateDescriptionAndVersion(*it);
+     }
+   }
+ }
+}
 
-  for (std::vector<WebPluginInfo>::iterator it =
-           web_plugin_infos_.begin();
+void PluginGroup::Enable(bool enable) {
+  bool enabled_plugin_exists = false;
+  for (std::list<WebPluginInfo>::iterator it = web_plugin_infos_.begin();
        it != web_plugin_infos_.end(); ++it) {
-    scoped_ptr<Version> version(CreateVersionFromString(it->version));
-    if (version.get()) {
-      for (size_t i = 0; i < version_ranges_.size(); ++i) {
-        if (IsPluginOutdated(*version, version_ranges_[i])) {
-          it->enabled = false;
-          NPAPI::PluginList::Singleton()->DisablePlugin(it->path);
-        }
-      }
+    bool policy_disabled = IsPluginNameDisabledByPolicy(it->name);
+    if (enable && !policy_disabled) {
+      NPAPI::PluginList::Singleton()->EnablePlugin(it->path);
+      enabled_plugin_exists = true;
+    } else {
+      NPAPI::PluginList::Singleton()->DisablePlugin(it->path, policy_disabled);
     }
-    UpdateActivePlugin(*it);
   }
+  enabled_ = enabled_plugin_exists;
 }
 
-void PluginGroup::Enable(bool enable) {
+void PluginGroup::RefreshEnabledState() {
   bool enabled_plugin_exists = false;
-  for (std::vector<WebPluginInfo>::iterator it =
-       web_plugin_infos_.begin();
+  for (std::list<WebPluginInfo>::iterator it = web_plugin_infos_.begin();
        it != web_plugin_infos_.end(); ++it) {
-    if (enable && !IsPluginNameDisabledByPolicy(it->name)) {
-      NPAPI::PluginList::Singleton()->EnablePlugin(it->path);
-      it->enabled = true;
+    if (it->enabled) {
       enabled_plugin_exists = true;
-    } else {
-      it->enabled = false;
-      NPAPI::PluginList::Singleton()->DisablePlugin(it->path);
+      break;
     }
   }
   enabled_ = enabled_plugin_exists;