Alter SkCanvas::drawPicture (devirtualize, take const SkPicture, take pointer)

src/pipe/SkGPipeWrite.cpp

Index: src/pipe/SkGPipeWrite.cpp
diff --git a/src/pipe/SkGPipeWrite.cpp b/src/pipe/SkGPipeWrite.cpp
index 4a5dcd51a085747ce50ef00e8cf01d690596b2f5..a3c38646bb55d3ae55ec453c007a5bbe19cdc763 100644
--- a/src/pipe/SkGPipeWrite.cpp
+++ b/src/pipe/SkGPipeWrite.cpp
@@ -249,7 +249,6 @@ public:
                                 const SkRect& dst, const SkPaint* paint = NULL) SK_OVERRIDE;
     virtual void drawSprite(const SkBitmap&, int left, int top,
                             const SkPaint*) SK_OVERRIDE;
-    virtual void drawPicture(SkPicture& picture) SK_OVERRIDE;
     virtual void drawVertices(VertexMode, int vertexCount,
                           const SkPoint vertices[], const SkPoint texs[],
                           const SkColor colors[], SkXfermode*,
@@ -289,6 +288,8 @@ protected:
     virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE;
     virtual void onClipRegion(const SkRegion&, SkRegion::Op) SK_OVERRIDE;
 
+    virtual void onDrawPicture(const SkPicture* picture) SK_OVERRIDE;
+
 private:
     void recordTranslate(const SkMatrix&);
     void recordScale(const SkMatrix&);
@@ -929,9 +930,9 @@ void SkGPipeCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const
     }
 }
 
-void SkGPipeCanvas::drawPicture(SkPicture& picture) {
+void SkGPipeCanvas::onDrawPicture(const SkPicture* picture) {
     // we want to playback the picture into individual draw calls
-    this->INHERITED::drawPicture(picture);
+    this->INHERITED::onDrawPicture(picture);
 }
 
 void SkGPipeCanvas::drawVertices(VertexMode vmode, int vertexCount,