Remove SkCanvas::isDrawingToLayer

include/core/SkCanvas.h

Index: include/core/SkCanvas.h
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index 50f15aaaaf95fc062876cfd4ec1942e0f38c5caf..6477b307df1fb978af1cf7ef72e7b1caca10b138 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -398,11 +398,6 @@ public:
     */
     void restoreToCount(int saveCount);
 
-    /** Returns true if drawing is currently going to a layer (from saveLayer)
-     *  rather than to the root device.
-     */
-    virtual bool isDrawingToLayer() const;
-
     /** Preconcat the current matrix with the specified translation
         @param dx   The distance to translate in X
         @param dy   The distance to translate in Y
@@ -1250,7 +1245,6 @@ private:
     const SkSurfaceProps fProps;
 
     int         fSaveCount;         // value returned by getSaveCount()
-    int         fSaveLayerCount;    // number of successful saveLayer calls
 
     SkMetaData* fMetaData;