Remove plugin_list.h includes from chrome tests in preparation for moving webkit/plugins to content…

chrome/browser/printing/print_preview_test.cc

Index: chrome/browser/printing/print_preview_test.cc
===================================================================
--- chrome/browser/printing/print_preview_test.cc	(revision 212185)
+++ chrome/browser/printing/print_preview_test.cc	(working copy)
@@ -76,8 +76,8 @@
 
   // The PluginService will be destroyed at the end of the test (due to the
   // ShadowingAtExitManager in our base class).
-  content::PluginService::GetInstance()->SetPluginListForTesting(
-      &plugin_list_);
+  content::PluginService::GetInstance()->Init();
+  content::PluginService::GetInstance()->DisablePluginsDiscoveryForTesting();
 
   profile()->GetPrefs()->SetBoolean(prefs::kPrintPreviewDisabled, false);
 }