Plugin Power Saver: Replace all "plug-in" with "plugin" for consistency.

content/utility/utility_thread_impl.cc

Index: content/utility/utility_thread_impl.cc
diff --git a/content/utility/utility_thread_impl.cc b/content/utility/utility_thread_impl.cc
index d1b9bfae87622393eb5b1ee976b2d621e027e3f8..94d7352915f975ef2136bdbd183755a5075d41d9 100644
--- a/content/utility/utility_thread_impl.cc
+++ b/content/utility/utility_thread_impl.cc
@@ -118,8 +118,8 @@ void UtilityThreadImpl::OnLoadPlugins(
   PluginList* plugin_list = PluginList::Singleton();
 
   std::vector<WebPluginInfo> plugins;
-  // TODO(bauerb): If we restart loading plug-ins, we might mess up the logic in
-  // PluginList::ShouldLoadPlugin due to missing the previously loaded plug-ins
+  // TODO(bauerb): If we restart loading plugins, we might mess up the logic in
+  // PluginList::ShouldLoadPlugin due to missing the previously loaded plugins
   // in |plugin_groups|.
   for (size_t i = 0; i < plugin_paths.size(); ++i) {
     WebPluginInfo plugin;