linux: OOP windowed plugins

chrome/browser/plugin_process_host.h

Index: chrome/browser/plugin_process_host.h
diff --git a/chrome/browser/plugin_process_host.h b/chrome/browser/plugin_process_host.h
index 72a5d78d2799a6aaf949f30e4a68ce3b455812de..62efdbda350560697bc9f8d007d7d77782a81237 100644
--- a/chrome/browser/plugin_process_host.h
+++ b/chrome/browser/plugin_process_host.h
@@ -110,6 +110,10 @@ class PluginProcessHost : public ChildProcessHost,
                      gfx::NativeWindow caller_window);
 #endif
 
+#if defined(OS_LINUX)
+  void OnMapNativeViewId(gfx::NativeViewId id, gfx::PluginWindowHandle* output);
+#endif
+
   virtual bool CanShutdown() { return sent_requests_.empty(); }
 
   struct ChannelRequest {