If we swap its arguments, SkTaskGroup::batch() _is_ sk_parallel_for.

tests/PathOpsSkpClipTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "CrashHandler.h"
 // #include "OverwriteLine.h"
 #include "Resources.h"
@@ skipping 289 matching lines @@
 
 TestRunner::~TestRunner() {
     for (int index = 0; index < fRunnables.count(); index++) {
         delete fRunnables[index];
     }
 }
 
 void TestRunner::render() {
     // TODO: this doesn't really need to use SkRunnables any more.
     // We can just write the code to run in the for-loop directly.
-    sk_parallel_for(fRunnables.count(), [&](int i) {
+    SkTaskGroup().batch(fRunnables.count(), [&](int i) {
         fRunnables[i]->run();
     });
 }
 
 ////////////////////////////////////////////////
 
 
 static int similarBits(const SkBitmap& gr, const SkBitmap& sk) {
     const int kRowCount = 3;
     const int kThreshold = 3;
@@ skipping 782 matching lines @@
         }
     }
     return 0;
 }
 
 #if !defined(SK_BUILD_FOR_IOS)
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif