Specify TaskType of posted Task explicitly in DataTransferItem (1)

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

Index: third_party/WebKit/Source/core/dom/StringCallback.cpp
diff --git a/third_party/WebKit/Source/core/dom/StringCallback.cpp b/third_party/WebKit/Source/core/dom/StringCallback.cpp
index 5342a2879b963bb5c6d2258c96dee4342e359ebc..8bddd8f4dde63dee1a071ec9c4725e38d367559e 100644
--- a/third_party/WebKit/Source/core/dom/StringCallback.cpp
+++ b/third_party/WebKit/Source/core/dom/StringCallback.cpp
@@ -32,16 +32,18 @@
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/ExecutionContextTask.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "public/platform/WebTraceLocation.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
-void StringCallback::scheduleCallback(StringCallback* callback,
+void StringCallback::scheduleCallback(TaskType taskType,
+                                      StringCallback* callback,
                                       ExecutionContext* context,
                                       const String& data,
                                       const String& instrumentationName) {
-  context->postTask(BLINK_FROM_HERE,
+  context->postTask(taskType, BLINK_FROM_HERE,
                     createSameThreadTask(&StringCallback::handleEvent,
                                          wrapPersistent(callback), data),
                     instrumentationName);