diff --git a/atom/browser/atom_browser_context.cc b/atom/browser/atom_browser_context.cc
index e3fdcd7ddc22..d54a39330967 100644
--- a/atom/browser/atom_browser_context.cc
+++ b/atom/browser/atom_browser_context.cc
@@ -135,10 +135,11 @@ AtomBrowserContext::CreateURLRequestJobFactory(
   job_factory->SetProtocolHandler(
       url::kDataScheme, base::WrapUnique(new net::DataProtocolHandler));
   job_factory->SetProtocolHandler(
-      url::kFileScheme, base::WrapUnique(new asar::AsarProtocolHandler(
-          base::CreateSequencedTaskRunnerWithTraits(
-            {base::MayBlock(),
-              base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN}))));
+      url::kFileScheme,
+      base::WrapUnique(
+          new asar::AsarProtocolHandler(base::CreateTaskRunnerWithTraits(
+              {base::MayBlock(), base::TaskPriority::USER_VISIBLE,
+               base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN}))));
   job_factory->SetProtocolHandler(
       url::kHttpScheme,
       base::WrapUnique(new HttpProtocolHandler(url::kHttpScheme)));
diff --git a/atom/browser/net/url_request_async_asar_job.cc b/atom/browser/net/url_request_async_asar_job.cc
index b9c6b9657177..f7ddcc6141b4 100644
--- a/atom/browser/net/url_request_async_asar_job.cc
+++ b/atom/browser/net/url_request_async_asar_job.cc
@@ -8,7 +8,6 @@
 
 #include "atom/common/atom_constants.h"
 #include "base/task_scheduler/post_task.h"
-#include "base/threading/sequenced_worker_pool.h"
 
 namespace atom {
 
@@ -33,7 +32,8 @@ void URLRequestAsyncAsarJob::StartAsync(std::unique_ptr<base::Value> options) {
   } else {
     asar::URLRequestAsarJob::Initialize(
         base::CreateSequencedTaskRunnerWithTraits(
-            {base::MayBlock(), base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN}),
+            {base::MayBlock(), base::TaskPriority::USER_VISIBLE,
+             base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN}),
         base::FilePath(file_path));
     asar::URLRequestAsarJob::Start();
   }
diff --git a/brightray/browser/url_request_context_getter.cc b/brightray/browser/url_request_context_getter.cc
index e1a1af6c4b9f..e39758d737ed 100644
--- a/brightray/browser/url_request_context_getter.cc
+++ b/brightray/browser/url_request_context_getter.cc
@@ -11,7 +11,6 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/task_scheduler/post_task.h"
-#include "base/threading/sequenced_worker_pool.h"
 #include "brightray/browser/browser_client.h"
 #include "brightray/browser/net/require_ct_delegate.h"
 #include "brightray/browser/net_log.h"
@@ -73,14 +72,14 @@ URLRequestContextGetter::Delegate::CreateURLRequestJobFactory(
   }
   protocol_handlers->clear();
 
-  auto runner = base::CreateSequencedTaskRunnerWithTraits(
-            {base::MayBlock(), base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN});
-
   job_factory->SetProtocolHandler(
       url::kDataScheme, base::WrapUnique(new net::DataProtocolHandler));
   job_factory->SetProtocolHandler(
       url::kFileScheme,
-      base::WrapUnique(new net::FileProtocolHandler(runner)));
+      base::WrapUnique(
+          new net::FileProtocolHandler(base::CreateTaskRunnerWithTraits(
+              {base::MayBlock(), base::TaskPriority::USER_VISIBLE,
+               base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN}))));
 
   return std::move(job_factory);
 }
@@ -227,7 +226,6 @@ net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
     }
 
     // --proxy-server
-    net::DhcpProxyScriptFetcherFactory dhcp_factory;
     if (command_line.HasSwitch(switches::kNoProxyServer)) {
       storage_->set_proxy_service(net::ProxyService::CreateDirect());
     } else if (command_line.HasSwitch(switches::kProxyServer)) {
diff --git a/chromium_src/chrome/browser/media/native_desktop_media_list.cc b/chromium_src/chrome/browser/media/native_desktop_media_list.cc
index 4a201adaf039..ac7b5eeafb3b 100644
--- a/chromium_src/chrome/browser/media/native_desktop_media_list.cc
+++ b/chromium_src/chrome/browser/media/native_desktop_media_list.cc
@@ -15,7 +15,6 @@ using base::PlatformThreadRef;
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/task_scheduler/post_task.h"
-#include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/media/desktop_media_list_observer.h"
 #include "content/public/browser/browser_thread.h"
 #include "media/base/video_util.h"
@@ -237,7 +236,7 @@ NativeDesktopMediaList::NativeDesktopMediaList(
       observer_(NULL),
       weak_factory_(this) {
   capture_task_runner_ = base::CreateSequencedTaskRunnerWithTraits(
-            {base::MayBlock()});
+      {base::MayBlock(), base::TaskPriority::USER_VISIBLE});
 }
 
 NativeDesktopMediaList::~NativeDesktopMediaList() {