Revert of Preparation CL for WebRTC performance test using promise-based getStats

chrome/browser/media/webrtc/test_stats_dictionary.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 CHROME_BROWSER_MEDIA_WEBRTC_TEST_STATS_DICTIONARY_H_
-#define CHROME_BROWSER_MEDIA_WEBRTC_TEST_STATS_DICTIONARY_H_
-
-#include <functional>
-#include <string>
-#include <vector>
-
-#include "base/memory/ref_counted.h"
-#include "base/values.h"
-
-namespace content {
-
-class TestStatsDictionary;
-
-class TestStatsReportDictionary
-    : public base::RefCounted<TestStatsReportDictionary> {
- public:
-  explicit TestStatsReportDictionary(
-      std::unique_ptr<base::DictionaryValue> report);
-
-  void ForEach(std::function<void(const TestStatsDictionary&)> iteration);
-  std::vector<TestStatsDictionary> Filter(
-      std::function<bool(const TestStatsDictionary&)> filter);
-
-  std::unique_ptr<TestStatsDictionary> Get(const std::string& id);
-  std::vector<TestStatsDictionary> GetAll();
-  std::vector<TestStatsDictionary> GetByType(const std::string& type);
-
- private:
-  friend class base::RefCounted<TestStatsReportDictionary>;
-  ~TestStatsReportDictionary();
-
-  std::unique_ptr<base::DictionaryValue> report_;
-};
-
-class TestStatsDictionary {
- public:
-  TestStatsDictionary(TestStatsReportDictionary* report,
-                     const base::DictionaryValue* stats);
-  TestStatsDictionary(const TestStatsDictionary& other);
-  ~TestStatsDictionary();
-
-  bool IsBoolean(const std::string& key) const;
-  bool GetBoolean(const std::string& key) const;
-
-  bool IsNumber(const std::string& key) const;
-  double GetNumber(const std::string& key) const;
-
-  bool IsString(const std::string& key) const;
-  std::string GetString(const std::string& key) const;
-
-  bool IsSequenceBoolean(const std::string& key) const;
-  std::vector<bool> GetSequenceBoolean(const std::string& key) const;
-
-  bool IsSequenceNumber(const std::string& key) const;
-  std::vector<double> GetSequenceNumber(const std::string& key) const;
-
-  bool IsSequenceString(const std::string& key) const;
-  std::vector<std::string> GetSequenceString(const std::string& key) const;
-
-  std::string ToString() const;
-
- private:
-  bool GetBoolean(const std::string& key, bool* out) const;
-  bool GetNumber(const std::string& key, double* out) const;
-  bool GetString(const std::string& key, std::string* out) const;
-  bool GetSequenceBoolean(
-      const std::string& key, std::vector<bool>* out) const;
-  bool GetSequenceNumber(
-      const std::string& key, std::vector<double>* out) const;
-  bool GetSequenceString(
-      const std::string& key, std::vector<std::string>* out) const;
-
-  // The reference keeps the report alive which indirectly owns |stats_|.
-  scoped_refptr<TestStatsReportDictionary> report_;
-  const base::DictionaryValue* stats_;
-};
-
-}  // namespace content
-
-#endif  // CHROME_BROWSER_MEDIA_WEBRTC_TEST_STATS_DICTIONARY_H_