Revert of Turn on preprocessing by default

tools/bench_pictures_main.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 "BenchTimer.h"
 #include "CopyTilesRenderer.h"
 #include "LazyDecodeBitmap.h"
@@ skipping 31 matching lines @@
 DEFINE_bool(timeIndividualTiles, false, "Report times for drawing individual tiles, rather than "
             "times for drawing the whole page. Requires tiled rendering.");
 DEFINE_bool(purgeDecodedTex, false, "Purge decoded and GPU-uploaded textures "
             "after each iteration.");
 DEFINE_string(timers, "c", "[wcgWC]*: Display wall, cpu, gpu, truncated wall or truncated cpu time"
               " for each picture.");
 DEFINE_bool(trackDeferredCaching, false, "Only meaningful with --deferImageDecoding and "
             "SK_LAZY_CACHE_STATS set to true. Report percentage of cache hits when using "
             "deferred image decoding.");
 
-DEFINE_bool(preprocess, true, "If true, perform device specific preprocessing before timing.");
+DEFINE_bool(preprocess, false, "If true, perform device specific preprocessing before timing.");
 
 static char const * const gFilterTypes[] = {
     "paint",
     "point",
     "line",
     "bitmap",
     "rect",
     "oval",
     "path",
     "text",
@@ skipping 382 matching lines @@
     }
 #endif
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif