Remove use of deprecated MessageLoop methods in ui.

ui/views/widget/widget_interactive_uitest.cc

Index: ui/views/widget/widget_interactive_uitest.cc
diff --git a/ui/views/widget/widget_interactive_uitest.cc b/ui/views/widget/widget_interactive_uitest.cc
index 5a0beea8fe139e04fb1eacfac6b450336144cddd..5daea56bee39d591452ba4d6dc85249cc194e2f3 100644
--- a/ui/views/widget/widget_interactive_uitest.cc
+++ b/ui/views/widget/widget_interactive_uitest.cc
@@ -6,11 +6,14 @@
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/location.h"
 #include "base/macros.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/text_input_client.h"
@@ -471,7 +474,7 @@ TEST_F(WidgetTestInteractive, DisableCaptureWidgetFromMousePress) {
   first->Show();
 
   gfx::Point location(20, 20);
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&Widget::OnMouseEvent, base::Unretained(second),
                             base::Owned(new ui::MouseEvent(
                                 ui::ET_MOUSE_RELEASED, location, location,