Remove CompositorSoftwareOutputDevice

content/renderer/gpu/compositor_software_output_device.h

-// Copyright (c) 2013 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 CONTENT_RENDERER_GPU_COMPOSITOR_SOFTWARE_OUTPUT_DEVICE_H_
-#define CONTENT_RENDERER_GPU_COMPOSITOR_SOFTWARE_OUTPUT_DEVICE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-#include "base/memory/shared_memory.h"
-#include "base/threading/non_thread_safe.h"
-#include "cc/output/software_output_device.h"
-#include "cc/resources/shared_bitmap.h"
-#include "content/public/renderer/render_thread.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-class SkRegion;
-
-namespace cc {
-class SharedBitmapManager;
-}
-
-namespace content {
-
-// This class can be created only on the main thread, but then becomes pinned
-// to a fixed thread when BindToClient is called.
-class CompositorSoftwareOutputDevice
-    : NON_EXPORTED_BASE(public cc::SoftwareOutputDevice),
-      NON_EXPORTED_BASE(public base::NonThreadSafe) {
- public:
-  CompositorSoftwareOutputDevice();
-  ~CompositorSoftwareOutputDevice() override;
-
-  void Resize(const gfx::Size& pixel_size, float scale_factor) override;
-
-  SkCanvas* BeginPaint(const gfx::Rect& damage_rect) override;
-  void EndPaint(cc::SoftwareFrameData* frame_data) override;
-  void EnsureBackbuffer() override;
-  void DiscardBackbuffer() override;
-
-  void ReclaimSoftwareFrame(unsigned id) override;
-
- private:
-  // Internal buffer class that manages shared memory lifetime and ownership.
-  // It also tracks buffers' history so we can calculate what's the minimum
-  // damage rect difference between any two given buffers (see SetParent and
-  // FindDamageDifferenceFrom).
-  class Buffer {
-   public:
-    explicit Buffer(unsigned id, scoped_ptr<cc::SharedBitmap> bitmap);
-    ~Buffer();
-
-    unsigned id() const { return id_; }
-
-    void* memory() const { return shared_bitmap_->pixels(); }
-    cc::SharedBitmapId shared_bitmap_id() const { return shared_bitmap_->id(); }
-
-    bool free() const { return free_; }
-    void SetFree(bool free) { free_ = free; }
-
-    Buffer* parent() const { return parent_; }
-    void SetParent(Buffer* parent, const gfx::Rect& damage);
-
-    bool FindDamageDifferenceFrom(Buffer* buffer, SkRegion* result) const;
-
-   private:
-    const unsigned id_;
-    scoped_ptr<cc::SharedBitmap> shared_bitmap_;
-    bool free_;
-    Buffer* parent_;
-    gfx::Rect damage_;
-
-    DISALLOW_COPY_AND_ASSIGN(Buffer);
-  };
-
-  class CompareById {
-   public:
-    CompareById(unsigned id) : id_(id) {}
-
-    bool operator()(const Buffer* buffer) const {
-      return buffer->id() == id_;
-    }
-
-   private:
-    const unsigned id_;
-  };
-
-  unsigned GetNextId();
-  Buffer* CreateBuffer();
-  size_t FindFreeBuffer(size_t hint);
-
-  size_t current_index_;
-  unsigned next_buffer_id_;
-  ScopedVector<Buffer> buffers_;
-  ScopedVector<Buffer> awaiting_ack_;
-  cc::SharedBitmapManager* shared_bitmap_manager_;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_GPU_COMPOSITOR_SOFTWARE_OUTPUT_DEVICE_H_