[SP] Enable Slimming Paint by default in Chromium and Blink.

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 734 matching lines @@
     {"enable-gpu-rasterization",
      IDS_FLAGS_ENABLE_GPU_RASTERIZATION_NAME,
      IDS_FLAGS_ENABLE_GPU_RASTERIZATION_DESCRIPTION,
      kOsAll,
      MULTI_VALUE_TYPE(kEnableGpuRasterizationChoices)},
     {"gpu-rasterization-msaa-sample-count",
      IDS_FLAGS_GPU_RASTERIZATION_MSAA_SAMPLE_COUNT_NAME,
      IDS_FLAGS_GPU_RASTERIZATION_MSAA_SAMPLE_COUNT_DESCRIPTION,
      kOsAll,
      MULTI_VALUE_TYPE(kGpuRasterizationMSAASampleCountChoices)},
+    {"disable-slimming-paint",
+     IDS_FLAGS_DISABLE_SLIMMING_PAINT_NAME,
+     IDS_FLAGS_DISABLE_SLIMMING_PAINT_DESCRIPTION,
+     kOsAll,
+     SINGLE_VALUE_TYPE(switches::kDisableSlimmingPaint)},
     {"enable-slimming-paint",
      IDS_FLAGS_ENABLE_SLIMMING_PAINT_NAME,
      IDS_FLAGS_ENABLE_SLIMMING_PAINT_DESCRIPTION,
      kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableSlimmingPaint)},
     {"enable-experimental-web-platform-features",
      IDS_FLAGS_EXPERIMENTAL_WEB_PLATFORM_FEATURES_NAME,
      IDS_FLAGS_EXPERIMENTAL_WEB_PLATFORM_FEATURES_DESCRIPTION,
      kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableExperimentalWebPlatformFeatures)},
@@ skipping 1827 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags