Split DirectCompositionSurfaceWin into two parts.

gpu/ipc/service/direct_composition_child_surface_win.h

 // Copyright 2017 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 GPU_IPC_SERVICE_DIRECT_COMPOSITION_SURFACE_WIN_H_
-#define GPU_IPC_SERVICE_DIRECT_COMPOSITION_SURFACE_WIN_H_
+#ifndef GPU_IPC_SERVICE_DIRECT_COMPOSITION_CHILD_SURFACE_WIN_H_
+#define GPU_IPC_SERVICE_DIRECT_COMPOSITION_CHILD_SURFACE_WIN_H_
 
 #include <d3d11.h>
 #include <dcomp.h>
 #include <windows.h>
 
-#include "base/memory/weak_ptr.h"
 #include "base/win/scoped_comptr.h"
-#include "gpu/config/gpu_driver_bug_workarounds.h"
 #include "gpu/gpu_export.h"
-#include "gpu/ipc/service/child_window_win.h"
-#include "gpu/ipc/service/image_transport_surface_delegate.h"
-#include "ui/gl/gl_image.h"
 #include "ui/gl/gl_surface_egl.h"
 
 namespace gpu {
 
-class DCLayerTree;
-
-class GPU_EXPORT DirectCompositionSurfaceWin : public gl::GLSurfaceEGL {
+class GPU_EXPORT DirectCompositionChildSurfaceWin : public gl::GLSurfaceEGL {
  public:
-  DirectCompositionSurfaceWin(
-      std::unique_ptr<gfx::VSyncProvider> vsync_provider,
-      base::WeakPtr<ImageTransportSurfaceDelegate> delegate,
-      HWND parent_window);
-
-  // Returns true if there's an output on the current adapter that can
-  // use overlays.
-  static bool AreOverlaysSupported();
-
-  bool InitializeNativeWindow();
+  DirectCompositionChildSurfaceWin(const gfx::Size& size,
+                                   bool has_alpha,
+                                   bool enable_dc_layers);
 
   // GLSurfaceEGL implementation.
   using GLSurfaceEGL::Initialize;
   bool Initialize(gl::GLSurfaceFormat format) override;
   void Destroy() override;
   gfx::Size GetSize() override;
   bool IsOffscreen() override;
   void* GetHandle() override;
-  bool Resize(const gfx::Size& size,
-              float scale_factor,
-              bool has_alpha) override;
   gfx::SwapResult SwapBuffers() override;
-  gfx::SwapResult PostSubBuffer(int x, int y, int width, int height) override;
-  gfx::VSyncProvider* GetVSyncProvider() override;
-  bool SetEnableDCLayers(bool enable) override;
   bool FlipsVertically() const override;
   bool SupportsPostSubBuffer() override;
   bool OnMakeCurrent(gl::GLContext* context) override;
   bool SupportsDCLayers() const override;
   bool SetDrawRectangle(const gfx::Rect& rect) override;
   gfx::Vector2d GetDrawOffset() const override;
-  void WaitForSnapshotRendering() override;
-
-  // This schedules an overlay plane to be displayed on the next SwapBuffers
-  // or PostSubBuffer call. Overlay planes must be scheduled before every swap
-  // to remain in the layer tree. This surface's backbuffer doesn't have to be
-  // scheduled with ScheduleDCLayer, as it's automatically placed in the layer
-  // tree at z-order 0.
-  bool ScheduleDCLayer(const ui::DCRendererLayerParams& params) override;
 
   const base::win::ScopedComPtr<IDCompositionSurface>& dcomp_surface() const {
     return dcomp_surface_;
   }
 
-  scoped_refptr<base::TaskRunner> GetWindowTaskRunnerForTesting();
   const base::win::ScopedComPtr<IDXGISwapChain1>& swap_chain() const {
     return swap_chain_;
   }
 
-  base::win::ScopedComPtr<IDXGISwapChain1> GetLayerSwapChainForTesting(
-      size_t index) const;
-
-  const GpuDriverBugWorkarounds& workarounds() const { return workarounds_; }
-
  protected:
-  ~DirectCompositionSurfaceWin() override;
+  ~DirectCompositionChildSurfaceWin() override;
 
  private:
   void ReleaseCurrentSurface();
   void InitializeSurface();
   // Release the texture that's currently being drawn to. If will_discard is
   // true then the surface should be discarded without swapping any contents
   // to it.
   void ReleaseDrawTexture(bool will_discard);
 
-  ChildWindowWin child_window_;
-
-  GpuDriverBugWorkarounds workarounds_;
-
-  HWND window_ = nullptr;
   // This is a placeholder surface used when not rendering to the
   // DirectComposition surface.
   EGLSurface default_surface_ = 0;
 
   // This is the real surface representing the backbuffer. It may be null
   // outside of a BeginDraw/EndDraw pair.
   EGLSurface real_surface_ = 0;
-  gfx::Size size_ = gfx::Size(1, 1);
   bool first_swap_ = true;
-  bool enable_dc_layers_ = false;
-  bool has_alpha_ = true;
-  std::unique_ptr<gfx::VSyncProvider> vsync_provider_;
+  const gfx::Size size_;
+  const bool has_alpha_;
+  const bool enable_dc_layers_;
   gfx::Rect swap_rect_;
-  std::unique_ptr<DCLayerTree> layer_tree_;
   gfx::Vector2d draw_offset_;
 
   base::win::ScopedComPtr<ID3D11Device> d3d11_device_;
   base::win::ScopedComPtr<IDCompositionDevice2> dcomp_device_;
   base::win::ScopedComPtr<IDCompositionSurface> dcomp_surface_;
   base::win::ScopedComPtr<IDXGISwapChain1> swap_chain_;
   base::win::ScopedComPtr<ID3D11Texture2D> draw_texture_;
 
   // Keep track of whether the texture has been rendered to, as the first draw
   // to it must overwrite the entire thing.
   bool has_been_rendered_to_ = false;
 
-  DISALLOW_COPY_AND_ASSIGN(DirectCompositionSurfaceWin);
+  DISALLOW_COPY_AND_ASSIGN(DirectCompositionChildSurfaceWin);
 };
 
 }  // namespace gpu
 
-#endif  // GPU_IPC_SERVICE_DIRECT_COMPOSITION_SURFACE_WIN_H_
+#endif  // GPU_IPC_SERVICE_DIRECT_COMPOSITION_CHILD_SURFACE_WIN_H_