Revert 202580 "Add CompositingReasons to compositor layer types."

trunk/src/cc/layers/layer.cc

Index: trunk/src/cc/layers/layer.cc
===================================================================
--- trunk/src/cc/layers/layer.cc	(revision 202662)
+++ trunk/src/cc/layers/layer.cc	(working copy)
@@ -40,7 +40,6 @@
       have_wheel_event_handlers_(false),
       anchor_point_(0.5f, 0.5f),
       background_color_(0),
-      compositing_reasons_(kCompositingReasonUnknown),
       opacity_(1.f),
       anchor_point_z_(0.f),
       is_container_for_fixed_position_layers_(false),
@@ -644,7 +643,6 @@
   layer->SetContentBounds(content_bounds());
   layer->SetContentsScale(contents_scale_x(), contents_scale_y());
   layer->SetDebugName(debug_name_);
-  layer->SetCompositingReasons(compositing_reasons_);
   layer->SetDoubleSided(double_sided_);
   layer->SetDrawCheckerboardForMissingTiles(
       draw_checkerboard_for_missing_tiles_);
@@ -751,11 +749,6 @@
   SetNeedsCommit();
 }
 
-void Layer::SetCompositingReasons(CompositingReasons reasons) {
-  compositing_reasons_ = reasons;
-  SetNeedsCommit();
-}
-
 void Layer::CreateRenderSurface() {
   DCHECK(!draw_properties_.render_surface);
   draw_properties_.render_surface = make_scoped_ptr(new RenderSurface(this));