mix-blend-mode implementation for accelerated layers - blink part

public/platform/WebLayer.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebLayer_h
 #define WebLayer_h
 
 #include "WebAnimation.h"
+#include "WebBlendMode.h"
 #include "WebColor.h"
 #include "WebCommon.h"
 #include "WebCompositingReasons.h"
 #include "WebPoint.h"
 #include "WebRect.h"
 #include "WebString.h"
 #include "WebVector.h"
 
 class SkMatrix44;
 class SkImageFilter;
@@ skipping 39 matching lines @@
 
     virtual void setMasksToBounds(bool) = 0;
     virtual bool masksToBounds() const = 0;
 
     virtual void setMaskLayer(WebLayer*) = 0;
     virtual void setReplicaLayer(WebLayer*) = 0;
 
     virtual void setOpacity(float) = 0;
     virtual float opacity() const = 0;
 
+    // FIXME: Make pure virtual after implementation lands.
+    virtual void setBlendMode(WebBlendMode) { }
+    virtual WebBlendMode blendMode() const { return WebBlendModeNormal; }
+
+    // FIXME: Make pure virtual after implementation lands.
+    virtual void setIsRootForIsolatedGroup(bool) { }
+    virtual bool isRootForIsolatedGroup() { return false; }
+
     virtual void setOpaque(bool) = 0;
     virtual bool opaque() const = 0;
 
     virtual void setPosition(const WebFloatPoint&) = 0;
     virtual WebFloatPoint position() const = 0;
 
     virtual void setSublayerTransform(const SkMatrix44&) = 0;
     virtual SkMatrix44 sublayerTransform() const = 0;
 
     virtual void setTransform(const SkMatrix44&) = 0;
@@ skipping 111 matching lines @@
 
     // True if the layer is not part of a tree attached to a WebLayerTreeView.
     virtual bool isOrphan() const = 0;
 
     virtual void setWebLayerClient(WebLayerClient*) = 0;
 };
 
 } // namespace blink
 
 #endif // WebLayer_h