update to accommodate latest clang in chrome toolchain

src/core/SkMatrix.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 "SkMatrix.h"
 #include "SkFloatBits.h"
 #include "SkString.h"
@@ skipping 1043 matching lines @@
     } else {
         SkMatrix tmp = *this;
 
         tmp.fMat[kMTransX] = tmp.fMat[kMTransY] = 0;
         tmp.clearTypeMask(kTranslate_Mask);
         tmp.mapPoints(dst, src, count);
     }
 }
 
 bool SkMatrix::mapRect(SkRect* dst, const SkRect& src) const {
-    SkASSERT(dst && &src);
+    SkASSERT(dst);
 
     if (this->rectStaysRect()) {
         this->mapPoints((SkPoint*)dst, (const SkPoint*)&src, 2);
         dst->sort();
         return true;
     } else {
         SkPoint quad[4];
 
         src.toQuad(quad);
         this->mapPoints(quad, quad, 4);
@@ skipping 699 matching lines @@
         rotation1->fX = cos1;
         rotation1->fY = sin1;
     }
     if (rotation2) {
         rotation2->fX = cos2;
         rotation2->fY = sin2;
     }
 
     return true;
 }