Add command line switches and about:flag to enable FPS indicator and compositor layer tree.

chrome/common/render_messages.cc

Index: chrome/common/render_messages.cc
diff --git a/chrome/common/render_messages.cc b/chrome/common/render_messages.cc
index 5df43f707460dea8938fe2d10e826241f8b2c4d4..9fb0e4fae9fa292656295d2bb2ddfcbc428a2da1 100644
--- a/chrome/common/render_messages.cc
+++ b/chrome/common/render_messages.cc
@@ -668,6 +668,8 @@ void ParamTraits<WebPreferences>::Write(Message* m, const param_type& p) {
   WriteParam(m, p.experimental_webgl_enabled);
   WriteParam(m, p.gl_multisampling_enabled);
   WriteParam(m, p.show_composited_layer_borders);
+  WriteParam(m, p.show_composited_layer_tree);
+  WriteParam(m, p.show_fps_counter);

[Vangelis Kokkevis, 2011/02/24 07:07:11]

You also need to add those in the ::Read method

[nduca, 2011/03/03 20:04:06]

Done.

   WriteParam(m, p.accelerated_compositing_enabled);
   WriteParam(m, p.accelerated_2d_canvas_enabled);
   WriteParam(m, p.accelerated_plugins_enabled);