Make OffscreenCanvas resizeable

third_party/WebKit/Source/modules/canvas2d/BaseRenderingContext2D.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 BaseRenderingContext2D_h
 #define BaseRenderingContext2D_h
 
 #include "bindings/modules/v8/CSSImageValueOrHTMLImageElementOrHTMLVideoElementOrHTMLCanvasElementOrImageBitmapOrOffscreenCanvas.h"
 #include "bindings/modules/v8/StringOrCanvasGradientOrCanvasPattern.h"
 #include "core/html/ImageData.h"
@@ skipping 18 matching lines @@
 typedef CSSImageValueOrHTMLImageElementOrHTMLVideoElementOrHTMLCanvasElementOrImageBitmapOrOffscreenCanvas
     CanvasImageSourceUnion;
 
 class MODULES_EXPORT BaseRenderingContext2D : public GarbageCollectedMixin,
                                               public CanvasPathMethods {
   WTF_MAKE_NONCOPYABLE(BaseRenderingContext2D);
 
  public:
   ~BaseRenderingContext2D() override;
 
+  void reset();
+
   void strokeStyle(StringOrCanvasGradientOrCanvasPattern&) const;
   void setStrokeStyle(const StringOrCanvasGradientOrCanvasPattern&);
 
   void fillStyle(StringOrCanvasGradientOrCanvasPattern&) const;
   void setFillStyle(const StringOrCanvasGradientOrCanvasPattern&);
 
   double lineWidth() const;
   void setLineWidth(double);
 
   String lineCap() const;
@@ skipping 256 matching lines @@
   template <typename DrawFunc, typename ContainsFunc>
   bool draw(const DrawFunc&,
             const ContainsFunc&,
             const SkRect& bounds,
             CanvasRenderingContext2DState::PaintType,
             CanvasRenderingContext2DState::ImageType =
                 CanvasRenderingContext2DState::NoImage);
 
   void inflateStrokeRect(FloatRect&) const;
 
+  void unwindStateStack();
+
   enum DrawType {
     ClipFill,  // Fill that is already known to cover the current clip
     UntransformedUnclippedFill
   };
 
   void checkOverdraw(const SkRect&,
                      const SkPaint*,
                      CanvasRenderingContext2DState::ImageType,
                      DrawType);
 
@@ skipping 137 matching lines @@
   foregroundPaint.setBlendMode(SkBlendMode::kSrcOver);
   c->setMatrix(ctm);
   drawFunc(c, &foregroundPaint);
   c->restore();
   c->setMatrix(ctm);
 }
 
 }  // namespace blink
 
 #endif  // BaseRenderingContext2D_h