[content] Add support for Non nestable idle tasks the the RendererScheduler

content/renderer/scheduler/webthread_impl_for_scheduler_unittest.cc

Index: content/renderer/scheduler/webthread_impl_for_scheduler_unittest.cc
diff --git a/content/renderer/scheduler/webthread_impl_for_scheduler_unittest.cc b/content/renderer/scheduler/webthread_impl_for_scheduler_unittest.cc
index 68d3197e58521322d6b2bbb3a902b8d452589f54..f943d33008f46d9b0dfb545bcc80a072d6cfe175 100644
--- a/content/renderer/scheduler/webthread_impl_for_scheduler_unittest.cc
+++ b/content/renderer/scheduler/webthread_impl_for_scheduler_unittest.cc
@@ -6,6 +6,7 @@
 
 #include "base/run_loop.h"
 #include "content/renderer/scheduler/renderer_scheduler_impl.h"
+#include "content/renderer/scheduler/renderer_scheduler_message_loop_delegate.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebTraceLocation.h"
@@ -30,7 +31,8 @@ class MockTaskObserver : public blink::WebThread::TaskObserver {
 class WebThreadImplForSchedulerTest : public testing::Test {
  public:
   WebThreadImplForSchedulerTest()
-      : scheduler_(message_loop_.task_runner()),
+      : scheduler_(
+            RendererSchedulerMessageLoopDelegate::Create(&message_loop_)),
         default_task_runner_(scheduler_.DefaultTaskRunner()),
         thread_(&scheduler_) {}