Revert of Move the files related to Android<->Web credentials to a separate folder.

components/password_manager/core/browser/android_affiliation/affiliation_fetch_throttler.h

Index: components/password_manager/core/browser/android_affiliation/affiliation_fetch_throttler.h
diff --git a/components/password_manager/core/browser/android_affiliation/affiliation_fetch_throttler.h b/components/password_manager/core/browser/android_affiliation/affiliation_fetch_throttler.h
deleted file mode 100644
index 770cd6524fbffc5246ab247a61350f639a410fdd..0000000000000000000000000000000000000000
--- a/components/password_manager/core/browser/android_affiliation/affiliation_fetch_throttler.h
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright 2015 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_PASSWORD_MANAGER_CORE_BROWSER_ANDROID_AFFILIATION_AFFILIATION_FETCH_THROTTLER_H_
-#define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_ANDROID_AFFILIATION_AFFILIATION_FETCH_THROTTLER_H_
-
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "net/base/backoff_entry.h"
-#include "net/base/network_change_notifier.h"
-
-namespace base {
-class TickClock;
-class SingleThreadTaskRunner;
-}  // namespace base
-
-namespace password_manager {
-
-class AffiliationFetchThrottlerDelegate;
-
-// Implements the throttling logic that the AffiliationBackend will use when it
-// needs to issue requests over the network to fetch affiliation information.
-//
-// This class manages only the scheduling of the requests. It is up to the
-// consumer (the AffiliationBackend) to actually assemble and send the requests,
-// to report back about their success or failure, and to retry them if desired.
-// The process goes like this:
-//   1.) The consumer calls SignalNetworkRequestNeeded().
-//   2.) Once appropriate, OnCanSendNetworkRequest() is called on the delegate.
-//   3.) The consumer sends the request, and waits until it completes.
-//   4.) The consumer calls InformOfNetworkRequestComplete().
-// Note that only a single request at a time is supported.
-//
-// If the request fails in Step 3, the consumer should not automatically retry
-// it. Instead it should always proceed to Step 4, and then -- if retrying the
-// request is desired -- proceed immediately to Step 1. That is, it should act
-// as if another request was needed right away.
-//
-// Essentially, this class implements exponential backoff in case of network and
-// server errors with the additional constraint that no requests will be issued
-// in the first place while there is known to be no network connectivity. This
-// prevents the exponential backoff delay from growing huge during long offline
-// periods, so that requests will not be held back for too long after
-// connectivity is restored.
-class AffiliationFetchThrottler
-    : public net::NetworkChangeNotifier::ConnectionTypeObserver {
- public:
-  // Creates an instance that will use |tick_clock| as its tick source, and will
-  // post to |task_runner| to call the |delegate|'s OnSendNetworkRequest(). The
-  // |delegate| and |tick_clock| should outlive the throttler.
-  AffiliationFetchThrottler(
-      AffiliationFetchThrottlerDelegate* delegate,
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-      base::TickClock* tick_clock);
-  ~AffiliationFetchThrottler() override;
-
-  // Signals to the throttling logic that a network request is needed, and that
-  // OnCanSendNetworkRequest() should be called as soon as the request can be
-  // sent. OnCanSendNetworkRequest() will always be called asynchronously.
-  //
-  // Calls to this method will be ignored when a request is already known to be
-  // needed or while a request is in flight. To signal that another request will
-  // be needed right away after the current one, call this method after calling
-  // InformOfNetworkRequestComplete().
-  virtual void SignalNetworkRequestNeeded();
-
-  // Informs the back-off logic that the in-flight network request has been
-  // completed, either with |success| or not.
-  virtual void InformOfNetworkRequestComplete(bool success);
-
- protected:
-  AffiliationFetchThrottlerDelegate* delegate_;
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest, FailedRequests);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           GracePeriodAfterConnectivityIsRestored);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           GracePeriodAfterConnectivityIsRestored2);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           GracePeriodAfterConnectivityIsRestored3);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           ConnectivityLostDuringBackoff);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           ConnectivityLostAndRestoredDuringBackoff);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest, FlakyConnectivity);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           ConnectivityLostDuringRequest);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           ConnectivityLostAndRestoredDuringRequest);
-  FRIEND_TEST_ALL_PREFIXES(AffiliationFetchThrottlerTest,
-                           ConnectivityLostAndRestoredDuringRequest2);
-
-  enum State { IDLE, FETCH_NEEDED, FETCH_IN_FLIGHT };
-
-  // Exponential backoff parameters in case of network and server errors
-  static const net::BackoffEntry::Policy kBackoffPolicy;
-
-  // Minimum delay before sending the first request once network connectivity is
-  // restored. The fuzzing factor in |kBackoffParameters.jitter_factor| applies.
-  static const int64_t kGracePeriodAfterReconnectMs;
-
-  // Ensures that OnBackoffDelayExpiredCallback() is scheduled to be called back
-  // once the |exponential_backoff_| delay expires.
-  void EnsureCallbackIsScheduled();
-
-  // Called back when the |exponential_backoff_| delay expires.
-  void OnBackoffDelayExpiredCallback();
-
-  // net::NetworkChangeNotifier::ConnectionTypeObserver:
-  void OnConnectionTypeChanged(
-      net::NetworkChangeNotifier::ConnectionType type) override;
-
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  base::TickClock* tick_clock_;
-  State state_;
-  bool has_network_connectivity_;
-  bool is_fetch_scheduled_;
-  std::unique_ptr<net::BackoffEntry> exponential_backoff_;
-
-  base::WeakPtrFactory<AffiliationFetchThrottler> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(AffiliationFetchThrottler);
-};
-
-}  // namespace password_manager
-
-#endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_ANDROID_AFFILIATION_AFFILIATION_FETCH_THROTTLER_H_