Add matrix constructing helpers to SkMatrix

bench/PathBench.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "Benchmark.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 39 matching lines @@
         return fName.c_str();
     }
 
     void onDraw(const int loops, SkCanvas* canvas) override {
         SkPaint paint(fPaint);
         this->setupPaint(&paint);
 
         SkPath path;
         this->makePath(&path);
         if (fFlags & kBig_Flag) {
-            SkMatrix m;
-            m.setScale(SkIntToScalar(10), SkIntToScalar(10));
+            const SkMatrix m = SkMatrix::MakeScale(SkIntToScalar(10), SkIntToScalar(10));
             path.transform(m);
         }
 
         int count = loops;
         if (fFlags & kBig_Flag) {
             count >>= 2;
         }
         count >>= (3 * complexity());
 
         for (int i = 0; i < count; i++) {
@@ skipping 970 matching lines @@
 DEF_BENCH( return new ConservativelyContainsBench(ConservativelyContainsBench::kOval_Type); )
 
 
 // These seem to be optimized away, which is troublesome for timing.
 /*
 DEF_BENCH( return new ConicBench_Chop5() )
 DEF_BENCH( return new ConicBench_ComputeError() )
 DEF_BENCH( return new ConicBench_asQuadTol() )
 DEF_BENCH( return new ConicBench_quadPow2() )
 */