Compute damage rect for Cast video compositing

components/display_compositor/compositor_overlay_candidate_validator_ozone.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 "components/display_compositor/compositor_overlay_candidate_validator_ozone.h"
 
 #include <stddef.h>
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
+#include "cc/output/overlay_strategy_cast_underlay.h"
 #include "cc/output/overlay_strategy_fullscreen.h"
 #include "cc/output/overlay_strategy_single_on_top.h"
 #include "cc/output/overlay_strategy_underlay.h"
 #include "ui/ozone/public/overlay_candidates_ozone.h"
 
 namespace display_compositor {
 
 static gfx::BufferFormat GetBufferFormat(cc::ResourceFormat overlay_format) {
   switch (overlay_format) {
     // TODO(dshwang): overlay video still uses RGBA_8888.
     case cc::RGBA_8888:
     case cc::BGRA_8888:
       return gfx::BufferFormat::BGRA_8888;
     default:
       NOTREACHED();
       return gfx::BufferFormat::BGRA_8888;
   }
 }
 
 CompositorOverlayCandidateValidatorOzone::
     CompositorOverlayCandidateValidatorOzone(
         std::unique_ptr<ui::OverlayCandidatesOzone> overlay_candidates,
-        bool single_fullscreen)
+        bool single_fullscreen,
+        bool cast_underlay)
     : overlay_candidates_(std::move(overlay_candidates)),
       single_fullscreen_(single_fullscreen),
+      cast_underlay_(cast_underlay),
       software_mirror_active_(false) {}
 
 CompositorOverlayCandidateValidatorOzone::
     ~CompositorOverlayCandidateValidatorOzone() {}
 
 void CompositorOverlayCandidateValidatorOzone::GetStrategies(
     cc::OverlayProcessor::StrategyList* strategies) {
   if (single_fullscreen_) {
     strategies->push_back(
         base::MakeUnique<cc::OverlayStrategyFullscreen>(this));
+  } else if (cast_underlay_) {
+    strategies->push_back(
+        base::MakeUnique<cc::OverlayStrategyCastUnderlay>(this));
   } else {
     strategies->push_back(
         base::MakeUnique<cc::OverlayStrategySingleOnTop>(this));
     strategies->push_back(base::MakeUnique<cc::OverlayStrategyUnderlay>(this));
   }
 }
 
 bool CompositorOverlayCandidateValidatorOzone::AllowCALayerOverlays() {
   return false;
 }
@@ skipping 39 matching lines @@
     surfaces->at(i).display_rect = ozone_surface_list.at(i).display_rect;
   }
 }
 
 void CompositorOverlayCandidateValidatorOzone::SetSoftwareMirrorMode(
     bool enabled) {
   software_mirror_active_ = enabled;
 }
 
 }  // namespace display_compositor