DevTools: move recurring flag into AsyncTask, control cancelation from embedder only.

third_party/WebKit/Source/core/fileapi/FileReader.cpp

Index: third_party/WebKit/Source/core/fileapi/FileReader.cpp
diff --git a/third_party/WebKit/Source/core/fileapi/FileReader.cpp b/third_party/WebKit/Source/core/fileapi/FileReader.cpp
index f892a62630b96402cd4c676ba1142cf5633fca2d..968dcc77113cf1c0c3155d3aa0c6552b0cc9f6c7 100644
--- a/third_party/WebKit/Source/core/fileapi/FileReader.cpp
+++ b/third_party/WebKit/Source/core/fileapi/FileReader.cpp
@@ -93,7 +93,7 @@ class FileReader::ThrottlingController final
     if (!controller)
       return;
 
-    probe::asyncTaskScheduled(context, "FileReader", reader, true);
+    probe::asyncTaskScheduled(context, "FileReader", reader);
     controller->pushReader(reader);
   }
 
@@ -452,7 +452,7 @@ void FileReader::didFail(FileError::ErrorCode errorCode) {
 }
 
 void FileReader::fireEvent(const AtomicString& type) {
-  probe::AsyncTask asyncTask(getExecutionContext(), this);
+  probe::AsyncTask asyncTask(getExecutionContext(), this, "event");
   if (!m_loader) {
     dispatchEvent(ProgressEvent::create(type, false, 0, 0));
     return;