Fix rendering artifacts in pull-saveLayers-forward mode

src/core/SkPicturePlayback.h

Index: src/core/SkPicturePlayback.h
===================================================================
--- src/core/SkPicturePlayback.h	(revision 14658)
+++ src/core/SkPicturePlayback.h	(working copy)
@@ -273,7 +273,7 @@
         struct ReplacementInfo {
             size_t          fStart;
             size_t          fStop;
-            SkPoint         fPos;
+            SkIPoint        fPos;
             SkBitmap*       fBM;
             const SkPaint*  fPaint;  // Note: this object doesn't own the paint
         };
@@ -293,14 +293,13 @@
 
         void freeAll();
 
-    #ifdef SK_DEBUG
+#ifdef SK_DEBUG
         void validate() const;
-    #endif
+#endif
 
         SkTDArray<ReplacementInfo> fReplacements;
     };
 
-
     // Replace all the draw ops in the replacement ranges in 'replacements' with
     // the associated drawBitmap call
     // Draw replacing cannot be enabled at the same time as draw limiting