ozone: introduce OverlayCheckReturn_Params

ui/ozone/platform/drm/host/drm_overlay_manager.h

 // Copyright 2016 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.
 
 #ifndef UI_OZONE_PLATFORM_DRM_HOST_DRM_OVERLAY_MANAGER_H_
 #define UI_OZONE_PLATFORM_DRM_HOST_DRM_OVERLAY_MANAGER_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 14 matching lines @@
   ~DrmOverlayManager() override;
 
   // OverlayManagerOzone:
   std::unique_ptr<OverlayCandidatesOzone> CreateOverlayCandidates(
       gfx::AcceleratedWidget w) override;
 
   void ResetCache();
 
   // Communication-free implementations of actions performed in response to
   // messages from the GPU thread.
-  void GpuSentOverlayResult(gfx::AcceleratedWidget widget,
-                            const std::vector<OverlayCheck_Params>& params);
+  void GpuSentOverlayResult(
+      gfx::AcceleratedWidget widget,
+      const std::vector<OverlayCheck_Params>& params,
+      const std::vector<OverlayCheckReturn_Params>& returns);
 
   // Service method for DrmOverlayCandidatesHost
   void CheckOverlaySupport(
       OverlayCandidatesOzone::OverlaySurfaceCandidateList* candidates,
       gfx::AcceleratedWidget widget);
 
  private:
   void SendOverlayValidationRequest(
       const std::vector<OverlayCheck_Params>& new_params,
       gfx::AcceleratedWidget widget) const;
   bool CanHandleCandidate(
       const OverlayCandidatesOzone::OverlaySurfaceCandidate& candidate,
       gfx::AcceleratedWidget widget) const;
 
   GpuThreadAdapter* proxy_;               // Not owned.
   DrmWindowHostManager* window_manager_;  // Not owned.
 
   // List of all OverlayCheck_Params which have been validated in GPU side.
   // Value is set to true if we are waiting for validation results from GPU.
-  base::MRUCache<std::vector<OverlayCheck_Params>, bool> cache_;
+  base::MRUCache<std::vector<OverlayCheck_Params>,
+                 std::vector<OverlayCheckReturn_Params>>
+      cache_;
 
   DISALLOW_COPY_AND_ASSIGN(DrmOverlayManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_HOST_DRM_OVERLAY_MANAGER_H_