Change signatures of filter bounds methods to return a rect.

src/core/SkPaint.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPaint.h"
 #include "SkAutoKern.h"
 #include "SkChecksum.h"
@@ skipping 2022 matching lines @@
                      src->fRight + radius, src->fBottom + radius);
     } else {
         *storage = *src;
     }
 
     if (this->getMaskFilter()) {
         this->getMaskFilter()->computeFastBounds(*storage, storage);
     }
 
     if (this->getImageFilter()) {
-        this->getImageFilter()->computeFastBounds(*storage, storage);
+        *storage = this->getImageFilter()->computeFastBounds(*storage);
     }
 
     return *storage;
 }
 
 #ifndef SK_IGNORE_TO_STRING
 
 void SkPaint::toString(SkString* str) const {
     str->append("<dl><dt>SkPaint:</dt><dd><dl>");
 
@@ skipping 308 matching lines @@
 }
 
 uint32_t SkPaint::getHash() const {
     // We're going to hash 10 pointers and 7 32-bit values, finishing up with fBitfields,
     // so fBitfields should be 10 pointers and 6 32-bit values from the start.
     static_assert(offsetof(SkPaint, fBitfields) == 9 * sizeof(void*) + 6 * sizeof(uint32_t),
                   "SkPaint_notPackedTightly");
     return SkChecksum::Murmur3(reinterpret_cast<const uint32_t*>(this),
                                offsetof(SkPaint, fBitfields) + sizeof(fBitfields));
 }