Displaying "simplify page" on print preview by default

chrome/browser/about_flags.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 625 matching lines @@
      IDS_FLAGS_DISABLE_ACCELERATED_2D_CANVAS_NAME,
      IDS_FLAGS_DISABLE_ACCELERATED_2D_CANVAS_DESCRIPTION,
      kOsAll,
      SINGLE_VALUE_TYPE(switches::kDisableAccelerated2dCanvas)},
     {"enable-display-list-2d-canvas",
      IDS_FLAGS_ENABLE_DISPLAY_LIST_2D_CANVAS_NAME,
      IDS_FLAGS_ENABLE_DISPLAY_LIST_2D_CANVAS_DESCRIPTION,
      kOsAll,
      ENABLE_DISABLE_VALUE_TYPE(switches::kEnableDisplayList2dCanvas,
                                switches::kDisableDisplayList2dCanvas)},
+    {"enable-dom-distiller",
+     IDS_FLAGS_ENABLE_DOM_DISTILLER_NAME,
+     IDS_FLAGS_ENABLE_DOM_DISTILLER_DESCRIPTION,
+     kOsAll,
+     ENABLE_DISABLE_VALUE_TYPE(switches::kEnableDomDistiller,

[Vitaly Buka (NO REVIEWS), 2015/10/23 20:05:38]

please take a look at "disable-touch-adjustment" for example

+                               switches::kDisableDomDistiller)},
     {"composited-layer-borders",
      IDS_FLAGS_COMPOSITED_LAYER_BORDERS,
      IDS_FLAGS_COMPOSITED_LAYER_BORDERS_DESCRIPTION,
      kOsAll,
      SINGLE_VALUE_TYPE(cc::switches::kShowCompositedLayerBorders)},
     {"show-fps-counter",
      IDS_FLAGS_SHOW_FPS_COUNTER,
      IDS_FLAGS_SHOW_FPS_COUNTER_DESCRIPTION,
      kOsAll,
      SINGLE_VALUE_TYPE(cc::switches::kShowFPSCounter)},
@@ skipping 2144 matching lines @@
   FlagsState::GetInstance()->SetFeatureEntries(entries, count);
 }
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   return FlagsState::GetInstance()->GetFeatureEntries(count);
 }
 
 }  // namespace testing
 
 }  // namespace about_flags