Support for drawing a debug border around animated layers

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index c9a082e780ff276970b717a640d713a9c3c825e0..e8d98241425b3ebfd67d02b3a8392223c09c7c27 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -182,6 +182,8 @@ scoped_ptr<RenderWidgetCompositor> RenderWidgetCompositor::Create(
       !cmd->HasSwitch(cc::switches::kDisableCompositedAntialiasing);
 
   // These flags should be mirrored by UI versions in ui/compositor/.

[Ken Russell (switch to Gerrit), 2013/12/09 19:19:14]

Nit: I don't see any changes to ui/compositor/ in this patch. Should there be?

[avallee, 2013/12/09 21:30:26]

Our bounds are in window space for now. This means that when a window animated
its bounds are just the window bounds, not the total screen space bounds. I'll
disable the drawing in the ui compositor for now.

[danakj, 2013/12/09 21:43:52]

What this comment means is these flags should be possible to have --ui-same-flag
to enable it in the UI compositor so you can use it with ui compositor
animations, the same way that you would with renderer animations. Each
compositor can display these boxes independently of the other. They each have
their own notion of screen space.

[avallee, 2013/12/09 21:48:05]

Done.

+  settings.initial_debug_state.show_layer_animation_bounds_rects =
+      cmd->HasSwitch(cc::switches::kShowLayerAnimationBounds);
   settings.initial_debug_state.show_debug_borders =
       cmd->HasSwitch(cc::switches::kShowCompositedLayerBorders);
   settings.initial_debug_state.show_fps_counter =