onCreateDevice -> NULL now means the caller should create its own (bitmap) device

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 1239 matching lines @@
 
 private:
     class MCRec;
 
     SkAutoTUnref<SkClipStack> fClipStack;
     SkDeque     fMCStack;
     // points to top of stack
     MCRec*      fMCRec;
     // the first N recs that can fit here mean we won't call malloc
     enum {
-        kMCRecSize  = 128,   // most recent measurement
+        kMCRecSize  = 136,   // most recent measurement
         kMCRecCount = 8,     // common depth for save/restores
     };
     intptr_t fMCRecStorage[kMCRecSize * kMCRecCount / sizeof(intptr_t)];
     // for our base DeviceCM
     intptr_t fBaseLayerStorage[kMCRecSize / sizeof(intptr_t)];
 
     const SkSurfaceProps fProps;
 
     int         fSaveCount;         // value returned by getSaveCount()
 
@@ skipping 52 matching lines @@
     // internal methods are not virtual, so they can safely be called by other
     // canvas apis, without confusing subclasses (like SkPictureRecording)
     void internalDrawBitmap(const SkBitmap&, const SkMatrix& m, const SkPaint* paint);
     void internalDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src,
                                 const SkRect& dst, const SkPaint* paint,
                                 DrawBitmapRectFlags flags);
     void internalDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
                                 const SkRect& dst, const SkPaint* paint);
     void internalDrawPaint(const SkPaint& paint);
     void internalSaveLayer(const SkRect* bounds, const SkPaint*, SaveFlags, SaveLayerStrategy);
-    void internalDrawDevice(SkBaseDevice*, int x, int y, const SkPaint*);
+    void internalDrawDevice(SkBaseDevice*, int x, int y, const SkPaint*, bool isBitmapDevice);
 
     // shared by save() and saveLayer()
     void internalSave();
     void internalRestore();
     static void DrawRect(const SkDraw& draw, const SkPaint& paint,
                          const SkRect& r, SkScalar textSize);
     static void DrawTextDecorations(const SkDraw& draw, const SkPaint& paint,
                                     const char text[], size_t byteLength,
                                     SkScalar x, SkScalar y);
 
@@ skipping 154 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