Switch SkLocalMatrixImageFilter over to new onFilterImage interface

src/core/SkLocalMatrixImageFilter.h

Index: src/core/SkLocalMatrixImageFilter.h
diff --git a/src/core/SkLocalMatrixImageFilter.h b/src/core/SkLocalMatrixImageFilter.h
index da49df49327b3ec6b44c35d4d2a68dbd728892a6..f6bcb567732bf7a27ac136903d4d1a35963c28c1 100644
--- a/src/core/SkLocalMatrixImageFilter.h
+++ b/src/core/SkLocalMatrixImageFilter.h
@@ -9,8 +9,6 @@
 #define SkLocalMatrixImageFilter_DEFINED
 
 #include "SkImageFilter.h"
-#include "SkReadBuffer.h"
-#include "SkString.h"
 
 /**
  *  Wraps another imagefilter + matrix, such that using this filter will give the same result
@@ -25,14 +23,14 @@ public:
 
 protected:
     void flatten(SkWriteBuffer&) const override;
-    bool onFilterImageDeprecated(Proxy*, const SkBitmap& src, const Context&,
-                                 SkBitmap* result, SkIPoint* offset) const override;
+    SkSpecialImage* onFilterImage(SkSpecialImage* source, const Context&,
+                                  SkIPoint* offset) const override;
     SkIRect onFilterBounds(const SkIRect& src, const SkMatrix&, MapDirection) const override;
 
 private:
     SkLocalMatrixImageFilter(const SkMatrix& localM, SkImageFilter* input);
 
-    SkMatrix                    fLocalM;
+    SkMatrix fLocalM;
 
     typedef SkImageFilter INHERITED;
 };