Reland of move remote tree host and some related input and metro_driver code

chrome/browser/plugins/plugin_infobar_delegates.cc

Index: chrome/browser/plugins/plugin_infobar_delegates.cc
diff --git a/chrome/browser/plugins/plugin_infobar_delegates.cc b/chrome/browser/plugins/plugin_infobar_delegates.cc
index fc2bb135fd4c70132b77ac930f74a234aac7bf23..09df30046c454237564cceaf16dd0ca7adb35e24 100644
--- a/chrome/browser/plugins/plugin_infobar_delegates.cc
+++ b/chrome/browser/plugins/plugin_infobar_delegates.cc
@@ -38,10 +38,6 @@
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include "ui/base/win/shell.h"
-
-#if defined(USE_AURA)
-#include "ui/aura/remote_window_tree_host_win.h"
-#endif
 #endif
 
 using base::UserMetricsAction;