net: Use SequencedTaskRunner for URLFetcherResponseWriter

chrome/browser/google_apis/base_requests.cc

Index: chrome/browser/google_apis/base_requests.cc
diff --git a/chrome/browser/google_apis/base_requests.cc b/chrome/browser/google_apis/base_requests.cc
index e349517f36d8ce4854565ae99c77f4b096874f5f..334c990734df474dad9c0a0223832638201e7ce0 100644
--- a/chrome/browser/google_apis/base_requests.cc
+++ b/chrome/browser/google_apis/base_requests.cc
@@ -102,7 +102,7 @@ void ParseJson(base::TaskRunner* blocking_task_runner,
 }
 
 //=========================== ResponseWriter ==================================
-ResponseWriter::ResponseWriter(base::TaskRunner* file_task_runner,
+ResponseWriter::ResponseWriter(base::SequencedTaskRunner* file_task_runner,
                                const base::FilePath& file_path,
                                const GetContentCallback& get_content_callback)
     : get_content_callback_(get_content_callback) {
@@ -302,7 +302,7 @@ bool UrlFetchRequestBase::CalledOnValidThread() {
   return thread_checker_.CalledOnValidThread();
 }
 
-base::TaskRunner* UrlFetchRequestBase::blocking_task_runner() const {
+base::SequencedTaskRunner* UrlFetchRequestBase::blocking_task_runner() const {
   return sender_->blocking_task_runner();
 }