Canvas2D on WebGL texture

third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.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 OffscreenCanvasRenderingContext2D_h
 #define OffscreenCanvasRenderingContext2D_h
 
+#include <memory>
 #include "core/html/canvas/CanvasContextCreationAttributes.h"
 #include "core/html/canvas/CanvasRenderingContext.h"
 #include "core/html/canvas/CanvasRenderingContextFactory.h"
 #include "modules/canvas2d/BaseRenderingContext2D.h"
-#include <memory>
+#include "modules/webgl/WebGLTexture.h"
 
 namespace blink {
 
 class MODULES_EXPORT OffscreenCanvasRenderingContext2D final
     : public CanvasRenderingContext,
       public BaseRenderingContext2D {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(OffscreenCanvasRenderingContext2D);
 
  public:
@@ skipping 44 matching lines @@
   bool OriginClean() const final;
   void SetOriginTainted() final;
   bool WouldTaintOrigin(CanvasImageSource*, ExecutionContext*) final;
 
   int Width() const final;
   int Height() const final;
 
   bool HasImageBuffer() const final;
   ImageBuffer* GetImageBuffer() const final;
 
+  ImageBuffer* CreateTextureImageBuffer();
+
   bool ParseColorOrCurrentColor(Color&, const String& color_string) const final;
 
   PaintCanvas* DrawingCanvas() const final;
   PaintCanvas* ExistingDrawingCanvas() const final;
   void DisableDeferral(DisableDeferralReason) final;
 
   AffineTransform BaseTransform() const final;
   void DidDraw(const SkIRect& dirty_rect) final;  // overrides
                                                   // BaseRenderingContext2D and
                                                   // CanvasRenderingContext
@@ skipping 23 matching lines @@
   }
 
  private:
   bool IsPaintable() const final;
 
   RefPtr<StaticBitmapImage> TransferToStaticBitmapImage();
 
   CanvasColorSpace ColorSpace() const override;
   String ColorSpaceAsString() const override;
   CanvasPixelFormat PixelFormat() const override;
+
+  Member<WebGLTexture> webgl_texture_;
+  std::unique_ptr<ImageBuffer> texture_image_buffer_;
 };
 
 DEFINE_TYPE_CASTS(OffscreenCanvasRenderingContext2D,
                   CanvasRenderingContext,
                   context,
                   context->Is2d() && context->host(),
                   context.Is2d() && context.host());
 
 }  // namespace blink
 
 #endif  // OffscreenCanvasRenderingContext2D_h