cc: Fork OverlayCandidate to CALayerOverlay

cc/output/overlay_strategy_all_or_nothing.h

-// Copyright 2015 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 CC_OUTPUT_OVERLAY_STRATEGY_ALL_OR_NOTHING_H_
-#define CC_OUTPUT_OVERLAY_STRATEGY_ALL_OR_NOTHING_H_
-
-#include "cc/output/overlay_processor.h"
-
-namespace cc {
-
-class OverlayCandidateValidator;
-
-// This strategy attempts to promote all quads into overlays.
-// If any quad can't be promoted, it returns false and no quads are promoted.
-class CC_EXPORT OverlayStrategyAllOrNothing
-    : public OverlayProcessor::Strategy {
- public:
-  explicit OverlayStrategyAllOrNothing(
-      OverlayCandidateValidator* capability_checker);
-  ~OverlayStrategyAllOrNothing() override;
-
-  bool Attempt(ResourceProvider* resource_provider,
-               RenderPassList* render_passes,
-               OverlayCandidateList* candidate_list,
-               gfx::Rect* damage_rect) override;
-
- private:
-  OverlayCandidateValidator* capability_checker_;  // Weak.
-
-  DISALLOW_COPY_AND_ASSIGN(OverlayStrategyAllOrNothing);
-};
-
-}  // namespace cc
-
-#endif  // CC_OUTPUT_OVERLAY_STRATEGY_ALL_OR_NOTHING_H_