Index: third_party/WebKit/Source/core/workers/WorkletPendingTasks.cpp |
diff --git a/third_party/WebKit/Source/core/workers/WorkletPendingTasks.cpp b/third_party/WebKit/Source/core/workers/WorkletPendingTasks.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..211e1ed2327591b06b35a8e0f07dba76a3e52fea |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/workers/WorkletPendingTasks.cpp |
@@ -0,0 +1,47 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "core/workers/WorkletPendingTasks.h" |
+ |
+#include "core/dom/DOMException.h" |
+#include "core/dom/ExceptionCode.h" |
+#include "platform/wtf/WTF.h" |
+ |
+namespace blink { |
+ |
+WorkletPendingTasks::WorkletPendingTasks(int counter, |
+ ScriptPromiseResolver* resolver) |
+ : counter_(counter), resolver_(resolver) { |
+ DCHECK(IsMainThread()); |
+} |
+ |
+void WorkletPendingTasks::Abort() { |
+ DCHECK(IsMainThread()); |
+ // Step 3: "If script is null, then queue a task on outsideSettings's |
+ // responsible event loop to run these steps:" |
+ // 1: "If pendingTaskStruct's counter is not -1, then run these steps:" |
+ // 1: "Set pendingTaskStruct's counter to -1." |
+ // 2: "Reject promise with an "AbortError" DOMException." |
+ if (counter_ != -1) { |
+ counter_ = -1; |
+ // TODO(nhiroki): This should be kAbortError. |
+ resolver_->Reject(DOMException::Create(kNetworkError)); |
+ } |
+} |
+ |
+void WorkletPendingTasks::DecrementCounter() { |
+ DCHECK(IsMainThread()); |
+ // Step 5: "Queue a task on outsideSettings's responsible event loop to run |
+ // these steps:" |
+ // 1: "If pendingTaskStruct's counter is not -1, then run these steps:" |
+ // 1: "Decrement pendingTaskStruct's counter by 1." |
+ // 2: "If pendingTaskStruct's counter is 0, then resolve promise." |
+ if (counter_ != -1) { |
+ --counter_; |
+ if (counter_ == 0) |
+ resolver_->Resolve(); |
+ } |
+} |
+ |
+} // namespace blink |