Revert of Disable the image notification property on MacOS

content/child/runtime_features.cc

 // Copyright 2013 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 "content/child/runtime_features.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
@@ skipping 50 matching lines @@
 #if !(defined OS_ANDROID || defined OS_CHROMEOS)
     // Only Android, ChromeOS support NetInfo right now.
     WebRuntimeFeatures::enableNetworkInformation(false);
 #endif
 
 // Web Bluetooth is shipped on Android, ChromeOS & MacOS, experimental
 // otherwise.
 #if defined(OS_CHROMEOS) || defined(OS_ANDROID) || defined(OS_MACOSX)
   WebRuntimeFeatures::enableWebBluetooth(true);
 #endif
-
-// The Notification Center on Mac OS X does not support content images.
-#if defined(OS_MACOSX)
-  WebRuntimeFeatures::enableNotificationContentImage(false);
-#endif
 }
 
 void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
     const base::CommandLine& command_line) {
   bool enableExperimentalWebPlatformFeatures = command_line.HasSwitch(
       switches::kEnableExperimentalWebPlatformFeatures);
   if (enableExperimentalWebPlatformFeatures)
     WebRuntimeFeatures::enableExperimentalFeatures(true);
 
   WebRuntimeFeatures::enableOriginTrials(
@@ skipping 302 matching lines @@
   if (command_line.HasSwitch(switches::kDisableBlinkFeatures)) {
     std::vector<std::string> disabled_features = base::SplitString(
         command_line.GetSwitchValueASCII(switches::kDisableBlinkFeatures),
         ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
     for (const std::string& feature : disabled_features)
       WebRuntimeFeatures::enableFeatureFromString(feature, false);
   }
 }
 
 }  // namespace content