Move ImageLoader timer to frame-specific TaskRunnerTimer.

third_party/WebKit/Source/core/loader/ImageLoader.cpp

Index: third_party/WebKit/Source/core/loader/ImageLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/ImageLoader.cpp b/third_party/WebKit/Source/core/loader/ImageLoader.cpp
index 3dd9552906d1808eca5c2b6a3467776404796d05..548243f0cf71498013a9d7c0ef60ed3d023dd40c 100644
--- a/third_party/WebKit/Source/core/loader/ImageLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/ImageLoader.cpp
@@ -30,6 +30,7 @@
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/dom/IncrementLoadEventDelayCount.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/events/Event.h"
 #include "core/events/EventSender.h"
 #include "core/fetch/FetchRequest.h"
@@ -155,7 +156,10 @@ class ImageLoader::Task {
 
 ImageLoader::ImageLoader(Element* element)
     : m_element(element),
-      m_derefElementTimer(this, &ImageLoader::timerFired),
+      m_derefElementTimer(TaskRunnerHelper::get(TaskType::Networking,
+                                                element->document().frame()),
+                          this,
+                          &ImageLoader::timerFired),
       m_hasPendingLoadEvent(false),
       m_hasPendingErrorEvent(false),
       m_imageComplete(true),