Recast draw_filter_into_device as drawDevice

include/core/SkCanvas.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkCanvas_DEFINED
 #define SkCanvas_DEFINED
 
@@ skipping 1402 matching lines @@
     // returns false if the entire rectangle is entirely clipped out
     // If non-NULL, The imageFilter parameter will be used to expand the clip
     // and offscreen bounds for any margin required by the filter DAG.
     bool clipRectBounds(const SkRect* bounds, SaveLayerFlags, SkIRect* intersection,
                         const SkImageFilter* imageFilter = NULL);
 
 private:
     static bool BoundsAffectsClip(SaveLayerFlags);
     static SaveLayerFlags LegacySaveFlagsToSaveLayerFlags(uint32_t legacySaveFlags);
 
+    static void DrawDeviceWithFilter(SkBaseDevice* src, const SkImageFilter* filter,
+                                     SkBaseDevice* dst, const SkMatrix& ctm,
+                                     const SkClipStack* clipStack);
+
     enum ShaderOverrideOpacity {
         kNone_ShaderOverrideOpacity,        //!< there is no overriding shader (bitmap or image)
         kOpaque_ShaderOverrideOpacity,      //!< the overriding shader is opaque
         kNotOpaque_ShaderOverrideOpacity,   //!< the overriding shader may not be opaque
     };
 
     // notify our surface (if we have one) that we are about to draw, so it
     // can perform copy-on-write or invalidate any cached images
     void predrawNotify(bool willOverwritesEntireSurface = false);
     void predrawNotify(const SkRect* rect, const SkPaint* paint, ShaderOverrideOpacity);
@@ skipping 184 matching lines @@
 
 class SkCanvasClipVisitor {
 public:
     virtual ~SkCanvasClipVisitor();
     virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipRRect(const SkRRect&, SkRegion::Op, bool antialias) = 0;
     virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0;
 };
 
 #endif