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

webkit/glue/plugins/plugin_constants_win.h

 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_GLUE_PLUGIN_CONSTANTS_WIN_H_
 #define WEBKIT_GLUE_PLUGIN_CONSTANTS_WIN_H_
 
 // Used by the plugins_test when testing the older WMP plugin to force the new
 // plugin to not get loaded.
 #define kUseOldWMPPluginSwitch L"use-old-wmp"
 // Used for testing the ActiveX shim. By default it's off. If this flag is
 // specified we will use the native ActiveX shim.
 #define kNoNativeActiveXShimSwitch L"no-activex"
 // Internal file name for the ActiveX shim, used as a unique identifier.
 #define kActiveXShimFileName L"activex-shim"
 // Internal file name for the ActiveX shim, registered as the Windows Media
 // Player. Some sites walk the plugin list and look for specifically-named
 // plugins, so we must oblige them with a very specific name. See
 // http://codereview.chromium.org/7234 .
 #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_