Return overlay resources to renderers in larger batches.

cc/output/dc_layer_overlay.cc

 // Copyright 2017 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/output/dc_layer_overlay.h"
 
 #include "cc/base/math_util.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/yuv_video_draw_quad.h"
 #include "cc/resources/resource_provider.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "ui/gfx/geometry/rect_conversions.h"
 
 namespace cc {
 
 namespace {
 
 DCLayerOverlayProcessor::DCLayerResult FromYUVQuad(
     ResourceProvider* resource_provider,
     const YUVVideoDrawQuad* quad,
     DCLayerOverlay* ca_layer_overlay) {
-  unsigned resource_id = quad->y_plane_resource_id();
-  if (!resource_provider->IsOverlayCandidate(resource_id))
-    return DCLayerOverlayProcessor::DC_LAYER_FAILED_TEXTURE_NOT_CANDIDATE;
-  ca_layer_overlay->contents_resource_id = resource_id;
+  for (const auto& resource : quad->resources) {
+    if (!resource_provider->IsOverlayCandidate(resource))
+      return DCLayerOverlayProcessor::DC_LAYER_FAILED_TEXTURE_NOT_CANDIDATE;
+  }
+  ca_layer_overlay->resources = quad->resources;
   ca_layer_overlay->contents_rect = quad->ya_tex_coord_rect;
   ca_layer_overlay->filter = GL_LINEAR;
   return DCLayerOverlayProcessor::DC_LAYER_SUCCESS;
 }
 
 // Find a rectangle containing all the quads in a list that occlude the area
 // in target_quad.
 gfx::RectF GetOcclusionBounds(const gfx::RectF& target_quad,
                               QuadList::ConstIterator quad_list_begin,
                               QuadList::ConstIterator quad_list_end) {
@@ skipping 143 matching lines @@
     ca_layer_overlays->push_back(ca_layer);
     // Only allow one overlay for now.
     break;
   }
   damage_rect->Intersect(gfx::ToEnclosingRect(display_rect));
   previous_frame_underlay_rect_ = this_frame_underlay_rect;
   previous_display_rect_ = display_rect;
 }
 
 }  // namespace cc