Remove include of stdlib.h from SkTypes.h.

tests/PathOpsQuadLineIntersectionThreadedTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "PathOpsExtendedTest.h"
 #include "PathOpsThreadedCommon.h"
 #include "SkIntersections.h"
 #include "SkPathOpsLine.h"
@@ skipping 73 matching lines @@
             {(double) cx, (double) cy}}};
     SkReduceOrder reducer;
     int order = reducer.reduce(quad);
     if (order < 3) {
         return;
     }
     for (int tIndex = 0; tIndex <= 4; ++tIndex) {
         SkDPoint xy = quad.ptAtT(tIndex / 4.0);
         for (int h = -2; h <= 2; ++h) {
             for (int v = -2; v <= 2; ++v) {
-                if (h == v && abs(h) != 1) {
+                if (h == v && SkTAbs(h) != 1) {
                     continue;
                 }
                 double x = xy.fX;
                 double y = xy.fY;
                 SkDLine line = {{{x - h, y - v}, {x, y}}};
                 testLineIntersect(state.fReporter, quad, line, x, y);
                 state.fReporter->bumpTestCount();
                 SkDLine line2 = {{{x, y}, {x + h, y + v}}};
                 testLineIntersect(state.fReporter, quad, line2, x, y);
                 state.fReporter->bumpTestCount();
@@ skipping 13 matching lines @@
             for (int c = 0 ; c < 16; ++c) {
                     *testRunner.fRunnables.append() = SkNEW_ARGS(PathOpsThreadedRunnable,
                             (&testQuadLineIntersectMain, a, b, c, 0, &testRunner));
             }
             if (!reporter->allowExtendedTest()) goto finish;
         }
     }
 finish:
     testRunner.render();
 }