Remove Legacy NPAPI Flash Sandbox support

webkit/plugins/npapi/plugin_constants_win.h

Index: webkit/plugins/npapi/plugin_constants_win.h
===================================================================
--- webkit/plugins/npapi/plugin_constants_win.h	(revision 160170)
+++ webkit/plugins/npapi/plugin_constants_win.h	(working copy)
@@ -18,9 +18,6 @@
 // The window class name for a plugin window.
 extern const char16 kNativeWindowClassName[];
 
-// If property is non-zero window reparenting must add UIPI message filters.
-WEBKIT_PLUGINS_EXPORT extern const char16 kNativeWindowClassFilterProp[];
-
 // The name of the window class name for the wrapper HWND around the actual
 // plugin window that's used when running in multi-process mode.  This window
 // is created on the browser UI thread.
@@ -38,7 +35,6 @@
 extern const char16 kOldWMPPlugin[];
 extern const char16 kYahooApplicationStatePlugin[];
 extern const char16 kWanWangProtocolHandlerPlugin[];
-extern const char16 kBuiltinFlashPlugin[];
 extern const char16 kFlashPlugin[];
 extern const char16 kAcrobatReaderPlugin[];
 extern const char16 kRealPlayerPlugin[];