Index: net/nqe/effective_connection_type_observer.h |
diff --git a/net/nqe/effective_connection_type_observer.h b/net/nqe/effective_connection_type_observer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a83bc1c35e5076b0c695bbf413acc636a2e09341 |
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+++ b/net/nqe/effective_connection_type_observer.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 NET_NQE_NETWORK_QUALITY_EFFECTIVE_CONNECTION_TYPE_OBSERVER_H_ |
+#define NET_NQE_NETWORK_QUALITY_EFFECTIVE_CONNECTION_TYPE_OBSERVER_H_ |
+ |
+#include "base/compiler_specific.h" |
+#include "base/gtest_prod_util.h" |
+#include "base/macros.h" |
+#include "net/nqe/effective_connection_type.h" |
+ |
+namespace net { |
+ |
+// Observes changes in effective connection type. |
+class NET_EXPORT EffectiveConnectionTypeObserver { |
mmenke
2017/06/06 15:56:58
include net/base/net_export.h
tbansal1
2017/06/06 16:55:51
Done.
|
+ public: |
+ // Notifies the observer of a change in the effective connection type. |
+ // NetworkQualityEstimator computes the effective connection type once in |
+ // every interval of duration |
+ // |effective_connection_type_recomputation_interval_|. Additionally, when |
+ // there is a change in the connection type of the device, then the |
+ // effective connection type is immediately recomputed. |
+ // |
+ // If the computed effective connection type is different from the |
+ // previously notified effective connection type, then all the registered |
+ // observers are notified of the new effective connection type. |
+ virtual void OnEffectiveConnectionTypeChanged( |
+ EffectiveConnectionType type) = 0; |
+ |
+ protected: |
+ EffectiveConnectionTypeObserver() {} |
+ virtual ~EffectiveConnectionTypeObserver() {} |
+ |
+ private: |
+ DISALLOW_COPY_AND_ASSIGN(EffectiveConnectionTypeObserver); |
+}; |
+ |
+} // namespace net |
+ |
+#endif // NET_NQE_NETWORK_QUALITY_EFFECTIVE_CONNECTION_TYPE_OBSERVER_H_ |