Clean up PluginGroup and related code.

chrome/browser/mock_plugin_exceptions_table_model.cc

Index: chrome/browser/mock_plugin_exceptions_table_model.cc
diff --git a/chrome/browser/mock_plugin_exceptions_table_model.cc b/chrome/browser/mock_plugin_exceptions_table_model.cc
index e2d38a7170f8689ab9697c50b9f6da428b9c1eea..77b2a2f2a8021e07cb6c19c349788b7a3540a526 100644
--- a/chrome/browser/mock_plugin_exceptions_table_model.cc
+++ b/chrome/browser/mock_plugin_exceptions_table_model.cc
@@ -5,11 +5,11 @@
 #include "chrome/browser/mock_plugin_exceptions_table_model.h"
 
 void MockPluginExceptionsTableModel::set_plugins(
-    const NPAPI::PluginList::PluginMap& plugins) {
+    std::vector<PluginGroup>& plugins) {
   plugins_ = plugins;
 }
 
 void MockPluginExceptionsTableModel::GetPlugins(
-    NPAPI::PluginList::PluginMap* plugins) {
-  *plugins = plugins_;
+    std::vector<PluginGroup>* plugin_groups) {
+  *plugin_groups = plugins_;
 }