Change signatures of filter bounds methods to return a rect.

src/core/SkLocalMatrixImageFilter.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLocalMatrixImageFilter.h"
 #include "SkReadBuffer.h"
 #include "SkString.h"
@@ skipping 27 matching lines @@
     buffer.writeMatrix(fLocalM);
 }
 
 bool SkLocalMatrixImageFilter::onFilterImageDeprecated(Proxy* proxy, const SkBitmap& src,
                                                        const Context& ctx,
                                                        SkBitmap* result, SkIPoint* offset) const {
     Context localCtx(SkMatrix::Concat(ctx.ctm(), fLocalM), ctx.clipBounds(), ctx.cache());
     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
 void SkLocalMatrixImageFilter::toString(SkString* str) const {
     str->append("SkLocalMatrixImageFilter: (");
     str->append(")");
 }
 #endif