Resubmit issue 2221103002 to fix the iOS build by declaring the flag in

bench/nanobench.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "nanobench.h"
@@ skipping 26 matching lines @@
 #include "SkLeanWindows.h"
 #include "SkOSFile.h"
 #include "SkPictureRecorder.h"
 #include "SkPictureUtils.h"
 #include "SkString.h"
 #include "SkSurface.h"
 #include "SkSVGDOM.h"
 #include "SkTaskGroup.h"
 #include "SkThreadUtils.h"
 #include "ThermalManager.h"
+#include "SkScan.h"
 
 #include <stdlib.h>
 
 #ifndef SK_BUILD_FOR_WIN32
     #include <unistd.h>
 #endif
 
 #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
     #include "nanobenchAndroid.h"
 #endif
@@ skipping 1114 matching lines @@
         SkDebugf("Can't parse %s from --useThermalManager.\n", FLAGS_useThermalManager[0]);
         exit(1);
     }
     ThermalManager tm(tmThreshold, tmSleepTimeMs, tmTimeoutMs);
 #endif
 
     if (FLAGS_keepAlive) {
         start_keepalive();
     }
 
+    if (FLAGS_analyticAA) {
+        GlobalAAConfig::getInstance().fUseAnalyticAA = true;
+    }
+
     int runs = 0;
     BenchmarkStream benchStream;
     while (Benchmark* b = benchStream.next()) {
         SkAutoTDelete<Benchmark> bench(b);
         if (SkCommandLineFlags::ShouldSkip(FLAGS_match, bench->getUniqueName())) {
             continue;
         }
 
         if (!configs.empty()) {
             log->bench(bench->getUniqueName(), bench->getSize().fX, bench->getSize().fY);
@@ skipping 156 matching lines @@
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     return nanobench_main();
 }
 #endif