Windowless plugins: basic drawing works.

webkit/glue/plugins/plugin_instance.h

Index: webkit/glue/plugins/plugin_instance.h
diff --git a/webkit/glue/plugins/plugin_instance.h b/webkit/glue/plugins/plugin_instance.h
index 7e3ecd047325ce8d02b5ac967145b5c7d46a4733..1d5b0941cccd795f25f0c4bb37fbc516e05cc28f 100644
--- a/webkit/glue/plugins/plugin_instance.h
+++ b/webkit/glue/plugins/plugin_instance.h
@@ -16,6 +16,7 @@
 #include "base/file_path.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
+#include "build/build_config.h"

[darin (slow to review), 2009/03/04 16:37:01]

nit: there's no need to include build_config.h here.  it is already included by
basictypes.h.

 #include "webkit/glue/plugins/nphostapi.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/npapi/bindings/npapi.h"
@@ -99,6 +100,8 @@ class PluginInstance : public base::RefCountedThreadSafe<PluginInstance> {
   // Handles a windows native message which this PluginInstance should deal
   // with.  Returns true if the event is handled, false otherwise.
   bool HandleEvent(UINT message, WPARAM wParam, LPARAM lParam);
+#elif defined(OS_LINUX)
+  bool HandleEvent(union _XEvent* event);
 #endif
 
   // Creates a stream for sending an URL.  If notify_needed