Make parallel unit testing work on windows

src/pathops/SkPathOpsDebug.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkPathOpsDebug_DEFINED
 #define SkPathOpsDebug_DEFINED
 
 #include "SkTypes.h"
 
 #ifdef SK_RELEASE
 #define FORCE_RELEASE 1
 #else
 #define FORCE_RELEASE 1  // set force release to 1 for multiple thread -- no debugging
 #endif
 
 #define ONE_OFF_DEBUG 0
 #define ONE_OFF_DEBUG_MATHEMATICA 0
 
-#if defined SK_DEBUG || !FORCE_RELEASE
-
 #ifdef SK_BUILD_FOR_WIN
     #define SK_RAND(seed) rand()
     #define SK_SNPRINTF _snprintf
 #else
     #define SK_RAND(seed) rand_r(&seed)
     #define SK_SNPRINTF snprintf
 #endif
 
+#if defined SK_DEBUG || !FORCE_RELEASE
+
 void mathematica_ize(char* str, size_t bufferSize);
 bool valid_wind(int winding);
 void winding_printf(int winding);
 
 extern int gDebugMaxWindSum;
 extern int gDebugMaxWindValue;
+
 #endif
 
 #if FORCE_RELEASE
 
 #define DEBUG_ACTIVE_OP 0
 #define DEBUG_ACTIVE_SPANS 0
 #define DEBUG_ACTIVE_SPANS_SHORT_FORM 0
 #define DEBUG_ADD_INTERSECTING_TS 0
 #define DEBUG_ADD_T_PAIR 0
 #define DEBUG_ANGLE 0
@@ skipping 76 matching lines @@
 
 #if DEBUG_ACTIVE_OP
 extern const char* kPathOpStr[];
 #endif
 
 #ifndef DEBUG_TEST
 #define DEBUG_TEST 0
 #endif
 
 #endif