Change signatures of filter bounds methods to return a rect.

src/core/SkLocalMatrixImageFilter.cpp

Index: src/core/SkLocalMatrixImageFilter.cpp
diff --git a/src/core/SkLocalMatrixImageFilter.cpp b/src/core/SkLocalMatrixImageFilter.cpp
index 4a9dea35bb7fe8dd68c4ffd4f9570649cf65e6d2..3214d2d93b9284c069de68397b58d56c0fab4170 100644
--- a/src/core/SkLocalMatrixImageFilter.cpp
+++ b/src/core/SkLocalMatrixImageFilter.cpp
@@ -45,9 +45,9 @@ bool SkLocalMatrixImageFilter::onFilterImageDeprecated(Proxy* proxy, const SkBit
     return this->filterInputDeprecated(0, proxy, src, localCtx, result, offset);
 }
 
-bool SkLocalMatrixImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& matrix,
-                                              SkIRect* dst, MapDirection direction) const {
-    return this->getInput(0)->filterBounds(src, SkMatrix::Concat(matrix, fLocalM), dst, direction);
+SkIRect SkLocalMatrixImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& matrix,
+                                                 MapDirection direction) const {
+    return this->getInput(0)->filterBounds(src, SkMatrix::Concat(matrix, fLocalM), direction);
 }
 
 #ifndef SK_IGNORE_TO_STRING