Revert of Remove EventSender from ImageLoader

third_party/WebKit/Source/core/dom/Document.cpp

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index d4d34ef4b6a7d4f584f56bd7fe012ac7fa02fe28..3677190d1c8f8ebce5e3064f6b484bb6947760f4 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -193,6 +193,7 @@
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameFetchContext.h"
 #include "core/loader/FrameLoader.h"
+#include "core/loader/ImageLoader.h"
 #include "core/loader/NavigationScheduler.h"
 #include "core/loader/PrerendererClient.h"
 #include "core/loader/appcache/ApplicationCacheHost.h"
@@ -3043,6 +3044,11 @@
   // onLoad event handler, as in Radar 3206524.
   DetachParser();
 
+  if (GetFrame() && CanExecuteScripts(kNotAboutToExecuteScript)) {
+    ImageLoader::DispatchPendingLoadEvents();
+    ImageLoader::DispatchPendingErrorEvents();
+  }
+
   // JS running below could remove the frame or destroy the LayoutView so we
   // call those two functions repeatedly and don't save them on the stack.