ActivationStateComputingThrottle unit tests

components/subresource_filter/content/browser/async_document_subresource_filter_test_utils.h

Index: components/subresource_filter/content/browser/async_document_subresource_filter_test_utils.h
diff --git a/components/subresource_filter/content/browser/async_document_subresource_filter_test_utils.h b/components/subresource_filter/content/browser/async_document_subresource_filter_test_utils.h
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index 0000000000000000000000000000000000000000..de9595bde3ed71f2aa5eaaa82dc86a8953d3ab8d
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+++ b/components/subresource_filter/content/browser/async_document_subresource_filter_test_utils.h
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+// 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 COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_ASYNC_DOCUMENT_SUBRESOURCE_FILTER_TEST_UTILS_H_
+#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_ASYNC_DOCUMENT_SUBRESOURCE_FILTER_TEST_UTILS_H_
+
+#include "base/bind.h"
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "components/subresource_filter/core/common/activation_state.h"
+
+namespace subresource_filter {
+namespace testing {
+
+// This test class is intended to be used in conjunction with an
+// AsyncDocumentSubresourceFilter, and can be used to expect a certain
+// activation result occured.
+class TestActivationStateCallbackReceiver {
+ public:
+  TestActivationStateCallbackReceiver() = default;
+
+  base::Callback<void(ActivationState)> GetCallback();
+  void ExpectReceivedOnce(const ActivationState& expected_state) const;
+
+ private:
+  void Callback(ActivationState activation_state);
+
+  ActivationState last_activation_state_;
+  int callback_count_ = 0;
+
+  DISALLOW_COPY_AND_ASSIGN(TestActivationStateCallbackReceiver);
+};
+
+}  // namespace testing
+}  // namespace subresource_filter
+
+#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_ASYNC_DOCUMENT_SUBRESOURCE_FILTER_TEST_UTILS_H_