Disable fullscren fb optimization with sw mirroring.

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>
 
@@ skipping 24 matching lines @@
     : overlay_candidates_(std::move(overlay_candidates)),
       single_fullscreen_(single_fullscreen),
       software_mirror_active_(false) {}
 
 CompositorOverlayCandidateValidatorOzone::
     ~CompositorOverlayCandidateValidatorOzone() {}
 
 void CompositorOverlayCandidateValidatorOzone::GetStrategies(
     cc::OverlayProcessor::StrategyList* strategies) {
   if (single_fullscreen_) {
-    strategies->push_back(base::MakeUnique<cc::OverlayStrategyFullscreen>());
+    strategies->push_back(
+        base::MakeUnique<cc::OverlayStrategyFullscreen>(this));
   } else {
     strategies->push_back(
         base::MakeUnique<cc::OverlayStrategySingleOnTop>(this));
     strategies->push_back(base::MakeUnique<cc::OverlayStrategyUnderlay>(this));
   }
 }
 
 bool CompositorOverlayCandidateValidatorOzone::AllowCALayerOverlays() {
   return false;
 }
 
 void CompositorOverlayCandidateValidatorOzone::CheckOverlaySupport(
     cc::OverlayCandidateList* surfaces) {
   // SW mirroring copies out of the framebuffer, so we can't remove any
   // quads for overlaying, otherwise the output is incorrect.
-  if (software_mirror_active_)
+  if (software_mirror_active_) {
+    for (size_t i = 0; i < surfaces->size(); i++) {
+      surfaces->at(i).overlay_handled = false;
+    }
     return;
+  }
+
+  if (single_fullscreen_) {
+    return;  // No need for validation for single fullscreen.
+  }
 
   DCHECK_GE(2U, surfaces->size());
   ui::OverlayCandidatesOzone::OverlaySurfaceCandidateList ozone_surface_list;
   ozone_surface_list.resize(surfaces->size());
 
   for (size_t i = 0; i < surfaces->size(); i++) {
     ozone_surface_list.at(i).transform = surfaces->at(i).transform;
     ozone_surface_list.at(i).format = GetBufferFormat(surfaces->at(i).format);
     ozone_surface_list.at(i).display_rect = surfaces->at(i).display_rect;
     ozone_surface_list.at(i).crop_rect = surfaces->at(i).uv_rect;
@@ skipping 14 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