Use constexpr TaskTraits constructor in chrome.

chrome/browser/chromeos/policy/device_status_collector.cc

Index: chrome/browser/chromeos/policy/device_status_collector.cc
diff --git a/chrome/browser/chromeos/policy/device_status_collector.cc b/chrome/browser/chromeos/policy/device_status_collector.cc
index caef23633ab758b7cd4a48eedf746322e898ca1d..521edf74c16c0b7264f2a219fc564c84db2b45a9 100644
--- a/chrome/browser/chromeos/policy/device_status_collector.cc
+++ b/chrome/browser/chromeos/policy/device_status_collector.cc
@@ -357,9 +357,7 @@ class GetStatusState : public base::RefCountedThreadSafe<GetStatusState> {
 
     // Call out to the blocking pool to sample disk volume info.
     base::PostTaskWithTraitsAndReplyWithResult(
-        FROM_HERE,
-        base::TaskTraits().MayBlock().WithPriority(
-            base::TaskPriority::BACKGROUND),
+        FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
         base::Bind(volume_info_fetcher, mount_points),
         base::Bind(&GetStatusState::OnVolumeInfoReceived, this));
   }
@@ -369,9 +367,7 @@ class GetStatusState : public base::RefCountedThreadSafe<GetStatusState> {
       const policy::DeviceStatusCollector::CPUTempFetcher& cpu_temp_fetcher) {
     // Call out to the blocking pool to sample CPU temp.
     base::PostTaskWithTraitsAndReplyWithResult(
-        FROM_HERE,
-        base::TaskTraits().MayBlock().WithPriority(
-            base::TaskPriority::BACKGROUND),
+        FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
         cpu_temp_fetcher,
         base::Bind(&GetStatusState::OnCPUTempInfoReceived, this));
   }
@@ -499,17 +495,13 @@ DeviceStatusCollector::DeviceStatusCollector(
 
   // Get the the OS and firmware version info.
   base::PostTaskWithTraitsAndReplyWithResult(
-      FROM_HERE,
-      base::TaskTraits().MayBlock().WithPriority(
-          base::TaskPriority::BACKGROUND),
+      FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
       base::Bind(&chromeos::version_loader::GetVersion,
                  chromeos::version_loader::VERSION_FULL),
       base::Bind(&DeviceStatusCollector::OnOSVersion,
                  weak_factory_.GetWeakPtr()));
   base::PostTaskWithTraitsAndReplyWithResult(
-      FROM_HERE,
-      base::TaskTraits().MayBlock().WithPriority(
-          base::TaskPriority::BACKGROUND),
+      FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
       base::Bind(&chromeos::version_loader::GetFirmware),
       base::Bind(&DeviceStatusCollector::OnOSFirmware,
                  weak_factory_.GetWeakPtr()));
@@ -727,9 +719,7 @@ void DeviceStatusCollector::SampleResourceUsage() {
 
   // Call out to the blocking pool to sample CPU stats.
   base::PostTaskWithTraitsAndReplyWithResult(
-      FROM_HERE,
-      base::TaskTraits().MayBlock().WithPriority(
-          base::TaskPriority::BACKGROUND),
+      FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
       cpu_statistics_fetcher_,
       base::Bind(&DeviceStatusCollector::ReceiveCPUStatistics,
                  weak_factory_.GetWeakPtr()));