Update SRTFetcher browser test to use ScopedMockTimeMessageLoopTaskRunner

chrome/browser/component_updater/sw_reporter_installer_win.cc

Index: chrome/browser/component_updater/sw_reporter_installer_win.cc
diff --git a/chrome/browser/component_updater/sw_reporter_installer_win.cc b/chrome/browser/component_updater/sw_reporter_installer_win.cc
index c558cfd468619d0e494ba6701a371b3b5ff807cb..b3d32a72cbb79d99a8f4fb4c86746dd1a4faea55 100644
--- a/chrome/browser/component_updater/sw_reporter_installer_win.cc
+++ b/chrome/browser/component_updater/sw_reporter_installer_win.cc
@@ -29,7 +29,6 @@
 #include "base/strings/string_tokenizer.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/task_scheduler/post_task.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "base/win/registry.h"
@@ -138,17 +137,7 @@ void RunSwReportersAfterStartup(
     const base::Version& version) {
   content::BrowserThread::PostAfterStartupTask(
       FROM_HERE, base::ThreadTaskRunnerHandle::Get(),
-      base::Bind(&safe_browsing::RunSwReporters, invocations, version,
-                 base::ThreadTaskRunnerHandle::Get(),
-                 // Runs LaunchAndWaitForExit() which creates (MayBlock()) and
-                 // joins (WithBaseSyncPrimitives()) a process.
-                 base::CreateTaskRunnerWithTraits(
-                     base::TaskTraits()
-                         .WithShutdownBehavior(
-                             base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN)
-                         .WithPriority(base::TaskPriority::BACKGROUND)
-                         .MayBlock()
-                         .WithBaseSyncPrimitives())));
+      base::Bind(&safe_browsing::RunSwReporters, invocations, version));
 }
 
 // Ensures |str| contains only alphanumeric characters and characters from