HUD: Show first paint invalidation in red

cc/layers/layer_impl.cc

 // Copyright 2012 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.
 
 #include "cc/layers/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/debug/trace_event_argument.h"
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
@@ skipping 45 matching lines @@
       masks_to_bounds_(false),
       contents_opaque_(false),
       is_root_for_isolated_group_(false),
       use_parent_backface_visibility_(false),
       draw_checkerboard_for_missing_tiles_(false),
       draws_content_(false),
       hide_layer_and_subtree_(false),
       force_render_surface_(false),
       transform_is_invertible_(true),
       is_container_for_fixed_position_layers_(false),
+      includes_first_paint_invalidation_(false),
       background_color_(0),
       opacity_(1.0),
       blend_mode_(SkXfermode::kSrcOver_Mode),
       num_descendants_that_draw_content_(0),
       draw_depth_(0.f),
       needs_push_properties_(false),
       num_dependents_need_push_properties_(0),
       sorting_context_id_(0),
       current_draw_mode_(DRAW_MODE_NONE) {
   DCHECK_GT(layer_id_, 0);
@@ skipping 83 matching lines @@
   // Having both a scroll parent and a scroll offset delegate is unsupported.
   DCHECK(!scroll_offset_delegate_);
 
   if (parent)
     DCHECK_EQ(layer_tree_impl()->LayerById(parent->id()), parent);
 
   scroll_parent_ = parent;
   SetNeedsPushProperties();
 }
 
-void LayerImpl::SetDebugInfo(
-    scoped_refptr<base::debug::ConvertableToTraceFormat> other) {
+void LayerImpl::SetDebugInfo(scoped_refptr<LayerDebugInfo> other) {
   debug_info_ = other;
   SetNeedsPushProperties();
 }
 
 void LayerImpl::SetScrollChildren(std::set<LayerImpl*>* children) {
   if (scroll_children_.get() == children)
     return;
   scroll_children_.reset(children);
   SetNeedsPushProperties();
 }
@@ skipping 405 matching lines @@
 
   layer->PassCopyRequests(&copy_requests_);
 
   // If the main thread commits multiple times before the impl thread actually
   // draws, then damage tracking will become incorrect if we simply clobber the
   // update_rect here. The LayerImpl's update_rect needs to accumulate (i.e.
   // union) any update changes that have occurred on the main thread.
   update_rect_.Union(layer->update_rect());
   layer->SetUpdateRect(update_rect_);
 
+  layer->SetIncludesFirstPaintInvalidation(includes_first_paint_invalidation());
+
   layer->SetStackingOrderChanged(stacking_order_changed_);
   layer->SetDebugInfo(debug_info_);
 
   // Reset any state that should be cleared for the next update.
   stacking_order_changed_ = false;
   update_rect_ = gfx::RectF();
   needs_push_properties_ = false;
   num_dependents_need_push_properties_ = 0;
 }
 
@@ skipping 929 matching lines @@
 }
 
 void LayerImpl::NotifyAnimationFinished(
     base::TimeTicks monotonic_time,
     Animation::TargetProperty target_property) {
   if (target_property == Animation::ScrollOffset)
     layer_tree_impl_->InputScrollAnimationFinished();
 }
 
 }  // namespace cc