Use constexpr TaskTraits constructor in chrome.

chrome/renderer/sandbox_status_extension_android.cc

Index: chrome/renderer/sandbox_status_extension_android.cc
diff --git a/chrome/renderer/sandbox_status_extension_android.cc b/chrome/renderer/sandbox_status_extension_android.cc
index 6840c224f6fef7547cdead554642e580597ba5a7..fe3f8342ca09276397547a1795acff4ca8314019 100644
--- a/chrome/renderer/sandbox_status_extension_android.cc
+++ b/chrome/renderer/sandbox_status_extension_android.cc
@@ -105,7 +105,7 @@ void SandboxStatusExtension::GetSandboxStatus(gin::Arguments* args) {
       base::MakeUnique<v8::Global<v8::Function>>(args->isolate(), callback);
 
   base::PostTaskWithTraitsAndReplyWithResult(
-      FROM_HERE, base::TaskTraits().MayBlock(),
+      FROM_HERE, {base::MayBlock()},
       base::Bind(&SandboxStatusExtension::ReadSandboxStatus, this),
       base::Bind(&SandboxStatusExtension::RunCallback, this,
                  base::Passed(&global_callback)));