Disable the image notification property on MacOS

content/child/runtime_features.cc

Index: content/child/runtime_features.cc
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
index b783df3bdd63ad83df54c5ef83fcb5d74ad293b0..5db3dab8ffc80f815d73cc18af7fdfc0518e57eb 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -68,6 +68,11 @@ static void SetRuntimeFeatureDefaultsForPlatform() {
 #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(