Revert of Revert "Serialization of SkPictureImageFilter"

src/image/SkImage.cpp

Index: src/image/SkImage.cpp
diff --git a/src/image/SkImage.cpp b/src/image/SkImage.cpp
index 9b0a0b2cf8a3efcb87c312c0cae4ceef52849b5b..a567c41ca89f8afc844ef1425bf673d77044c6c5 100644
--- a/src/image/SkImage.cpp
+++ b/src/image/SkImage.cpp
@@ -55,7 +55,7 @@
     if (NULL == bitmap) {
         return false;
     }
-    
+
     SkIRect bounds = SkIRect::MakeWH(this->width(), this->height());
 
     // trim against the bitmap, if its already been allocated
@@ -126,7 +126,7 @@
     srcR.set(subset);
     dstR = srcR;
     dstR.offset(-dstR.left(), -dstR.top());
-    
+
     SkCanvas canvas(*bitmap);
 
     SkPaint paint;
@@ -136,4 +136,3 @@
     const_cast<SkImage_Base*>(this)->onDrawRectToRect(&canvas, &srcR, dstR, NULL);
     return true;
 }
-