Add Ignition to about:flags.

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 682 matching lines @@
     {"disable-javascript-harmony-shipping",
      IDS_FLAGS_JAVASCRIPT_HARMONY_SHIPPING_NAME,
      IDS_FLAGS_JAVASCRIPT_HARMONY_SHIPPING_DESCRIPTION, kOsAll,
      SINGLE_DISABLE_VALUE_TYPE(switches::kDisableJavaScriptHarmonyShipping)},
     {"enable-javascript-harmony", IDS_FLAGS_JAVASCRIPT_HARMONY_NAME,
      IDS_FLAGS_JAVASCRIPT_HARMONY_DESCRIPTION, kOsAll,
      SINGLE_VALUE_TYPE(switches::kJavaScriptHarmony)},
     {"enable-webassembly", IDS_FLAGS_ENABLE_WASM_NAME,
      IDS_FLAGS_ENABLE_WASM_DESCRIPTION, kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableWasm)},
+    {"enable-ignition", IDS_FLAGS_V8_IGNITION_NAME,
+     IDS_FLAGS_V8_IGNITION_DESCRIPTION, kOsAll,
+     FEATURE_VALUE_TYPE(features::kV8Ignition)},
     {"disable-software-rasterizer", IDS_FLAGS_SOFTWARE_RASTERIZER_NAME,
      IDS_FLAGS_SOFTWARE_RASTERIZER_DESCRIPTION,
 #if defined(ENABLE_SWIFTSHADER)
      kOsAll,
 #else
      0,
 #endif
      SINGLE_DISABLE_VALUE_TYPE(switches::kDisableSoftwareRasterizer)},
     {"enable-gpu-rasterization", IDS_FLAGS_GPU_RASTERIZATION_NAME,
      IDS_FLAGS_GPU_RASTERIZATION_DESCRIPTION, kOsAll,
@@ skipping 1303 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags