cc: Introduce embedded_surfaces in metadata for surface Ids in draw quads

cc/layers/surface_layer_impl.cc

 // Copyright 2014 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/surface_layer_impl.h"
 
 #include <stdint.h>
 
 #include "base/trace_event/trace_event_argument.h"
 #include "cc/debug/debug_colors.h"
+#include "cc/layers/append_quads_data.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/surface_draw_quad.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/occlusion.h"
 
 namespace cc {
 
 SurfaceLayerImpl::SurfaceLayerImpl(LayerTreeImpl* tree_impl, int id)
     : LayerImpl(tree_impl, id) {
   layer_tree_impl()->AddSurfaceLayer(this);
@@ skipping 37 matching lines @@
   SurfaceLayerImpl* layer_impl = static_cast<SurfaceLayerImpl*>(layer);
   layer_impl->SetPrimarySurfaceInfo(primary_surface_info_);
   layer_impl->SetFallbackSurfaceInfo(fallback_surface_info_);
   layer_impl->SetStretchContentToFillBounds(stretch_content_to_fill_bounds_);
 }
 
 void SurfaceLayerImpl::AppendQuads(RenderPass* render_pass,
                                    AppendQuadsData* append_quads_data) {
   AppendRainbowDebugBorder(render_pass);
   auto* primary = CreateSurfaceDrawQuad(
-      render_pass, SurfaceDrawQuadType::PRIMARY, primary_surface_info_);
+      render_pass, SurfaceDrawQuadType::PRIMARY, primary_surface_info_,
+      &append_quads_data->embedded_surfaces);
   // Emitting a fallback SurfaceDrawQuad is unnecessary if the primary and
   // fallback surface Ids match.
   if (primary && fallback_surface_info_.id() != primary_surface_info_.id()) {
     primary->fallback_quad = CreateSurfaceDrawQuad(
-        render_pass, SurfaceDrawQuadType::FALLBACK, fallback_surface_info_);
+        render_pass, SurfaceDrawQuadType::FALLBACK, fallback_surface_info_,
+        &append_quads_data->embedded_surfaces);
   }
 }
 
 SurfaceDrawQuad* SurfaceLayerImpl::CreateSurfaceDrawQuad(
     RenderPass* render_pass,
     SurfaceDrawQuadType surface_draw_quad_type,
-    const SurfaceInfo& surface_info) {
+    const SurfaceInfo& surface_info,
+    std::vector<SurfaceId>* embedded_surfaces) {
   if (!surface_info.is_valid())
     return nullptr;
 
   gfx::Rect quad_rect(surface_info.size_in_pixels());
   gfx::Rect visible_quad_rect =
       draw_properties().occlusion_in_content_space.GetUnoccludedContentRect(
           gfx::Rect(bounds()));
 
   float layer_to_content_scale_x, layer_to_content_scale_y;
   if (stretch_content_to_fill_bounds_) {
@@ skipping 19 matching lines @@
 
   SharedQuadState* shared_quad_state =
       render_pass->CreateAndAppendSharedQuadState();
   PopulateScaledSharedQuadState(shared_quad_state, layer_to_content_scale_x,
                                 layer_to_content_scale_y);
 
   SurfaceDrawQuad* surface_draw_quad =
       render_pass->CreateAndAppendDrawQuad<SurfaceDrawQuad>();
   surface_draw_quad->SetNew(shared_quad_state, quad_rect, visible_quad_rect,
                             surface_info.id(), surface_draw_quad_type, nullptr);
+  embedded_surfaces->push_back(surface_info.id());
+
   return surface_draw_quad;
 }
 
 void SurfaceLayerImpl::GetDebugBorderProperties(SkColor* color,
                                                 float* width) const {
   *color = DebugColors::SurfaceLayerBorderColor();
   *width = DebugColors::SurfaceLayerBorderWidth(
       layer_tree_impl() ? layer_tree_impl()->device_scale_factor() : 1);
 }
 
@@ skipping 89 matching lines @@
   dict->SetString("surface_id", primary_surface_info_.id().ToString());
   dict->SetString("fallback_surface_id",
                   fallback_surface_info_.id().ToString());
 }
 
 const char* SurfaceLayerImpl::LayerTypeAsString() const {
   return "cc::SurfaceLayerImpl";
 }
 
 }  // namespace cc