Background tracing: Added preset category for blink_style

content/browser/tracing/background_tracing_manager_impl.cc

Index: content/browser/tracing/background_tracing_manager_impl.cc
diff --git a/content/browser/tracing/background_tracing_manager_impl.cc b/content/browser/tracing/background_tracing_manager_impl.cc
index 70215ba36275cd92babc9fbfb646ad4638fad115..161433e49ccdecae71c9b27ad2ad580637132ae9 100644
--- a/content/browser/tracing/background_tracing_manager_impl.cc
+++ b/content/browser/tracing/background_tracing_manager_impl.cc
@@ -550,6 +550,8 @@ BackgroundTracingManagerImpl::GetCategoryFilterStringForCategoryPreset(
       return "benchmark,toplevel,startup,disabled-by-default-file,"
              "disabled-by-default-toplevel.flow,"
              "disabled-by-default-ipc.flow";
+    case BackgroundTracingConfigImpl::CategoryPreset::BLINK_STYLE:
+      return "blink_style";
   }
   NOTREACHED();
   return "";