content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/shell/renderer/layout_test/blink_test_runner.cc

Index: content/shell/renderer/layout_test/blink_test_runner.cc
diff --git a/content/shell/renderer/layout_test/blink_test_runner.cc b/content/shell/renderer/layout_test/blink_test_runner.cc
index b17da212d91dc743367e3414b47a90509309c499..9c2cbbfd5652bc4e0c0da544ff10f02c9a7864ec 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.cc
+++ b/content/shell/renderer/layout_test/blink_test_runner.cc
@@ -13,13 +13,15 @@
 #include "base/compiler_specific.h"
 #include "base/debug/debugger.h"
 #include "base/files/file_path.h"
+#include "base/location.h"
 #include "base/md5.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "components/test_runner/app_banner_client.h"
 #include "components/test_runner/gamepad_controller.h"
@@ -831,7 +833,7 @@ void BlinkTestRunner::CaptureDumpPixels(const SkBitmap& snapshot) {
 void BlinkTestRunner::CaptureDumpComplete() {
   render_view()->GetWebView()->mainFrame()->stopLoading();
 
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(base::IgnoreResult(&BlinkTestRunner::Send),
                             base::Unretained(this),
                             new ShellViewHostMsg_TestFinished(routing_id())));