Offer single-param version of deepCopyTo -- much easier to migrate to colortypes

include/core/SkBitmap.h

Index: include/core/SkBitmap.h
diff --git a/include/core/SkBitmap.h b/include/core/SkBitmap.h
index 92d7473a3565013cd01585bc02c561b5264ed019..80ccd0ae51477b8e425fa982adb996af4777f942 100644
--- a/include/core/SkBitmap.h
+++ b/include/core/SkBitmap.h
@@ -23,6 +23,8 @@ class SkPixelRefFactory;
 class SkRegion;
 class SkString;
 
+#define SK_SUPPORT_DEEPCOPYTO_CONFIG
+
 class GrTexture;
 
 /** \class SkBitmap
@@ -637,7 +639,19 @@ public:
      *  gpu (typically as a texture), the it will do the same for the dst.
      *  If the request cannot be fulfilled, returns false and dst is unmodified.
      */
+#ifndef SK_SUPPORT_DEEPCOPYTO_CONFIG
+private:
+#endif
     bool deepCopyTo(SkBitmap* dst, Config c) const;
+public:
+
+    /** Makes a deep copy of this bitmap, keeping the copied pixels
+     *  in the same domain as the source: If the src pixels are allocated for
+     *  the cpu, then so will the dst. If the src pixels are allocated on the
+     *  gpu (typically as a texture), the it will do the same for the dst.
+     *  If the request cannot be fulfilled, returns false and dst is unmodified.
+     */
+    bool deepCopyTo(SkBitmap* dst) const;
 
     /** Returns true if this bitmap can be deep copied into the requested config
         by calling copyTo().