Index: content/common/worker_use_counter.h |
diff --git a/content/common/worker_use_counter.h b/content/common/worker_use_counter.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..5a7894783c2916f5ea442807186a50274432085a |
--- /dev/null |
+++ b/content/common/worker_use_counter.h |
@@ -0,0 +1,37 @@ |
+// 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. |
+ |
+#ifndef CONTENT_COMMON_WORKER_USE_COUNTER_H_ |
+#define CONTENT_COMMON_WORKER_USE_COUNTER_H_ |
+ |
+#include <cstdint> |
+#include <memory> |
+#include <vector> |
+ |
+#include "content/common/content_export.h" |
+ |
+namespace content { |
+ |
+// A mirror of UseCounter on WorkerGlobalScope in Blink-side. |
+class CONTENT_EXPORT WorkerUseCounter { |
+ public: |
+ WorkerUseCounter(); |
+ explicit WorkerUseCounter(std::vector<char> counter); |
+ ~WorkerUseCounter(); |
+ |
+ void Count(uint32_t feature); |
+ bool IsCounted(uint32_t feature); |
+ |
+ // Returns an internal bit vector that represents a use counter. |
+ std::vector<char> Dump(); |
+ |
+ size_t GetNumberOfBits() const; |
+ |
+ private: |
+ std::vector<char> counter_; |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_COMMON_WORKER_USE_COUNTER_H_ |