Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/browser/site_per_process_browsertest.cc

Index: content/browser/site_per_process_browsertest.cc
diff --git a/content/browser/site_per_process_browsertest.cc b/content/browser/site_per_process_browsertest.cc
index d266e7b04998ea56508d816645ce2d4c6b6727cf..282141a49c65f7f8c2ad37253a19a311a79a0a12 100644
--- a/content/browser/site_per_process_browsertest.cc
+++ b/content/browser/site_per_process_browsertest.cc
@@ -8,11 +8,8 @@
 #include <vector>
 
 #include "base/command_line.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/thread_task_runner_handle.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/navigator.h"
@@ -434,7 +431,7 @@ IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest,
     // TODO(lazyboy): Find a better way to avoid sleeping like this. See
     // http://crbug.com/405282 for details.
     base::RunLoop run_loop;
-    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+    base::MessageLoop::current()->PostDelayedTask(
         FROM_HERE, run_loop.QuitClosure(),
         base::TimeDelta::FromMilliseconds(10));
     run_loop.Run();