More speedup of scrolling when many windowed plugins in a page. Scrolling is...

webkit/glue/plugins/plugin_constants_win.h

Index: webkit/glue/plugins/plugin_constants_win.h
===================================================================
--- webkit/glue/plugins/plugin_constants_win.h	(revision 8294)
+++ webkit/glue/plugins/plugin_constants_win.h	(working copy)
@@ -20,4 +20,17 @@
 #define kActiveXShimFileNameForMediaPlayer \
     L"Microsoft\xAE Windows Media Player Firefox Plugin"
 
+
+// The window class name for a plugin window.
+#define kNativeWindowClassName L"NativeWindowClass"
+
+// 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.
+#define kWrapperNativeWindowClassName L"WrapperNativeWindowClass"
+
+// The name of the custom window message that the browser uses to tell the
+// plugin process to paint a window.
+#define kPaintMessageName L"Chrome_CustomPaint"
+
 #endif  // WEBKIT_GLUE_PLUGIN_PLUGIN_LIST_H_