ui: Add debug flag to show composited layer borders in ChromeOS UI.

cc/layers/render_surface_impl.cc

 // Copyright 2011 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/render_surface_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 368 matching lines @@
   int sorting_context_id =
       property_trees->transform_tree.Node(TransformTreeIndex())
           ->sorting_context_id;
   SharedQuadState* shared_quad_state =
       render_pass->CreateAndAppendSharedQuadState();
   shared_quad_state->SetAll(
       draw_transform(), content_rect().size(), content_rect(),
       draw_properties_.clip_rect, draw_properties_.is_clipped,
       draw_properties_.draw_opacity, BlendMode(), sorting_context_id);
 
-  if (layer_tree_impl_->debug_state().show_debug_borders) {
+  if (layer_tree_impl_->debug_state().show_debug_borders.test(
+          DebugBorderType::RENDERPASS)) {
     DebugBorderDrawQuad* debug_border_quad =
         render_pass->CreateAndAppendDrawQuad<DebugBorderDrawQuad>();
     debug_border_quad->SetNew(shared_quad_state, content_rect(),
                               visible_layer_rect, GetDebugBorderColor(),
                               GetDebugBorderWidth());
   }
 
   ResourceId mask_resource_id = 0;
   gfx::Size mask_texture_size;
   gfx::Vector2dF mask_uv_scale;
@@ skipping 19 matching lines @@
   RenderPassDrawQuad* quad =
       render_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
   quad->SetNew(
       shared_quad_state, content_rect(), visible_layer_rect, GetRenderPassId(),
       mask_resource_id, gfx::ScaleRect(gfx::RectF(content_rect()),
                                        mask_uv_scale.x(), mask_uv_scale.y()),
       mask_texture_size, surface_contents_scale, FiltersOrigin(), gfx::RectF());
 }
 
 }  // namespace cc