Use constexpr TaskTraits constructor in feedback_data.cc.

components/feedback/feedback_data.cc

 // Copyright 2014 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 "components/feedback/feedback_data.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 47 matching lines @@
             base::Bind(&FeedbackData::OnGetTraceData, this, trace_id_))) {
       pending_op_count_--;
       trace_id_ = 0;
     }
   }
 
   if (sys_info) {
     ++pending_op_count_;
     AddLogs(std::move(sys_info));
     base::PostTaskWithTraitsAndReply(
-        FROM_HERE,
-        base::TaskTraits().MayBlock().WithPriority(
-            base::TaskPriority::BACKGROUND),
+        FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
         base::Bind(&FeedbackData::CompressLogs, this),
         base::Bind(&FeedbackData::OnCompressComplete, this));
   }
 }
 
 void FeedbackData::SetAndCompressHistograms(
     std::unique_ptr<std::string> histograms) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (!histograms)
     return;
   ++pending_op_count_;
   base::PostTaskWithTraitsAndReply(
-      FROM_HERE,
-      base::TaskTraits().MayBlock().WithPriority(
-          base::TaskPriority::BACKGROUND),
+      FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
       base::Bind(&FeedbackData::CompressFile, this,
                  base::FilePath(kHistogramsFilename), kHistogramsAttachmentName,
                  base::Passed(&histograms)),
       base::Bind(&FeedbackData::OnCompressComplete, this));
 }
 
 void FeedbackData::AttachAndCompressFileData(
     std::unique_ptr<std::string> attached_filedata) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (!attached_filedata || attached_filedata->empty())
     return;
   ++pending_op_count_;
   base::FilePath attached_file =
                   base::FilePath::FromUTF8Unsafe(attached_filename_);
   base::PostTaskWithTraitsAndReply(
-      FROM_HERE,
-      base::TaskTraits().MayBlock().WithPriority(
-          base::TaskPriority::BACKGROUND),
+      FROM_HERE, {base::MayBlock(), base::TaskPriority::BACKGROUND},
       base::Bind(&FeedbackData::CompressFile, this, attached_file,
                  std::string(), base::Passed(&attached_filedata)),
       base::Bind(&FeedbackData::OnCompressComplete, this));
 }
 
 void FeedbackData::OnGetTraceData(
     int trace_id,
     scoped_refptr<base::RefCountedString> trace_data) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   TracingManager* manager = TracingManager::Get();
@@ skipping 23 matching lines @@
 
 void FeedbackData::SendReport() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (IsDataComplete() && !report_sent_) {
     report_sent_ = true;
     send_report_.Run(this);
   }
 }
 
 }  // namespace feedback