Gracefully handle child process death in out-of-process plugin loading.

webkit/plugins/npapi/plugin_list_mac.mm

Index: webkit/plugins/npapi/plugin_list_mac.mm
diff --git a/webkit/plugins/npapi/plugin_list_mac.mm b/webkit/plugins/npapi/plugin_list_mac.mm
index 361691ac8f4906982146bff91ef114e804acd87f..62c3768abfb35cac01b6188101e4f90054ba85ed 100644
--- a/webkit/plugins/npapi/plugin_list_mac.mm
+++ b/webkit/plugins/npapi/plugin_list_mac.mm
@@ -84,16 +84,14 @@ void PluginList::GetPluginDirectories(std::vector<FilePath>* plugin_dirs) {
   }
 }
 
-void PluginList::LoadPluginsFromDir(const FilePath &path,
-                                    ScopedVector<PluginGroup>* plugin_groups,
-                                    std::set<FilePath>* visited_plugins) {
+void PluginList::GetPluginsInDir(
+    const FilePath& path, std::vector<FilePath>* plugins) {
   file_util::FileEnumerator enumerator(path,
                                        false, // not recursive
                                        file_util::FileEnumerator::DIRECTORIES);
   for (FilePath path = enumerator.Next(); !path.value().empty();
        path = enumerator.Next()) {
-    LoadPlugin(path, plugin_groups);
-    visited_plugins->insert(path);
+    plugins->push_back(path);
   }
 }