Renamed WebRTCStats.h to WebRTCLegacyStats.h and cleaned it up

third_party/WebKit/public/platform/WebRTCLegacyStats.h

+// Copyright 2016 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 WebRTCLegacyStats_h
+#define WebRTCLegacyStats_h
+
+#include "WebCommon.h"
+#include "WebString.h"
+
+namespace blink {
+
+class WebRTCLegacyStatsMemberIterator;
+
+enum WebRTCLegacyStatsMemberType {
+    WebRTCLegacyStatsMemberTypeInt,
+    WebRTCLegacyStatsMemberTypeInt64,
+    WebRTCLegacyStatsMemberTypeFloat,
+    WebRTCLegacyStatsMemberTypeString,
+    WebRTCLegacyStatsMemberTypeBool,
+    WebRTCLegacyStatsMemberTypeId,
+};
+
+class WebRTCLegacyStats {
+public:
+    virtual ~WebRTCLegacyStats() {}
+
+    virtual WebString id() const = 0;
+    virtual WebString type() const = 0;
+    virtual double timestamp() const = 0;
+
+    // The caller owns the iterator. The iterator must not be used after
+    // the |WebRTCLegacyStats| that created it is destroyed.
+    virtual WebRTCLegacyStatsMemberIterator* iterator() const = 0;
+};
+
+class WebRTCLegacyStatsMemberIterator {
+public:
+    virtual ~WebRTCLegacyStatsMemberIterator() {}
+    virtual bool isEnd() const = 0;
+    virtual void next() = 0;
+
+    virtual WebString name() const = 0;
+    virtual WebRTCLegacyStatsMemberType type() const = 0;
+    // Value getters. No conversion is performed; the function must match the
+    // member's |type|.
+    virtual int valueInt() const = 0; // WebRTCLegacyStatsMemberTypeInt
+    virtual int64_t valueInt64() const = 0; // WebRTCLegacyStatsMemberTypeInt64
+    virtual float valueFloat() const = 0; // WebRTCLegacyStatsMemberTypeFloat
+    virtual WebString valueString() const = 0; // WebRTCLegacyStatsMemberTypeString
+    virtual bool valueBool() const = 0; // WebRTCLegacyStatsMemberTypeBool
+
+    // Converts the value to string (regardless of |type|).
+    virtual WebString valueToString() const = 0;
+};
+
+} // namespace blink
+
+#endif // WebRTCLegacyStats_h