Move storage-related files from webkit/ to new top-level directory storage/

webkit/browser/quota/quota_manager.h

Index: webkit/browser/quota/quota_manager.h
diff --git a/webkit/browser/quota/quota_manager.h b/webkit/browser/quota/quota_manager.h
deleted file mode 100644
index ebb953a9ae8c63e66364f485578e85c360a788cd..0000000000000000000000000000000000000000
--- a/webkit/browser/quota/quota_manager.h
+++ /dev/null
@@ -1,459 +0,0 @@
-// Copyright 2013 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 WEBKIT_BROWSER_QUOTA_QUOTA_MANAGER_H_
-#define WEBKIT_BROWSER_QUOTA_QUOTA_MANAGER_H_
-
-#include <deque>
-#include <list>
-#include <map>
-#include <set>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/files/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/sequenced_task_runner_helpers.h"
-#include "webkit/browser/quota/quota_callbacks.h"
-#include "webkit/browser/quota/quota_client.h"
-#include "webkit/browser/quota/quota_database.h"
-#include "webkit/browser/quota/quota_task.h"
-#include "webkit/browser/quota/special_storage_policy.h"
-#include "webkit/browser/quota/storage_observer.h"
-#include "webkit/browser/webkit_storage_browser_export.h"
-
-namespace base {
-class FilePath;
-class SequencedTaskRunner;
-class SingleThreadTaskRunner;
-}
-
-namespace quota_internals {
-class QuotaInternalsProxy;
-}
-
-namespace content {
-class MockQuotaManager;
-class MockStorageClient;
-class QuotaManagerTest;
-class StorageMonitorTest;
-
-}
-
-namespace quota {
-
-class QuotaDatabase;
-class QuotaManagerProxy;
-class QuotaTemporaryStorageEvictor;
-class StorageMonitor;
-class UsageTracker;
-
-struct QuotaManagerDeleter;
-
-struct WEBKIT_STORAGE_BROWSER_EXPORT UsageAndQuota {
-  int64 usage;
-  int64 global_limited_usage;
-  int64 quota;
-  int64 available_disk_space;
-
-  UsageAndQuota();
-  UsageAndQuota(int64 usage,
-                int64 global_limited_usage,
-                int64 quota,
-                int64 available_disk_space);
-};
-
-// An interface called by QuotaTemporaryStorageEvictor.
-class WEBKIT_STORAGE_BROWSER_EXPORT QuotaEvictionHandler {
- public:
-  typedef base::Callback<void(const GURL&)> GetLRUOriginCallback;
-  typedef StatusCallback EvictOriginDataCallback;
-  typedef base::Callback<void(QuotaStatusCode status,
-                              const UsageAndQuota& usage_and_quota)>
-      UsageAndQuotaCallback;
-
-  // Returns the least recently used origin.  It might return empty
-  // GURL when there are no evictable origins.
-  virtual void GetLRUOrigin(
-      StorageType type,
-      const GetLRUOriginCallback& callback) = 0;
-
-  virtual void EvictOriginData(
-      const GURL& origin,
-      StorageType type,
-      const EvictOriginDataCallback& callback) = 0;
-
-  virtual void GetUsageAndQuotaForEviction(
-      const UsageAndQuotaCallback& callback) = 0;
-
- protected:
-  virtual ~QuotaEvictionHandler() {}
-};
-
-struct UsageInfo {
-  UsageInfo(const std::string& host, StorageType type, int64 usage)
-      : host(host),
-        type(type),
-        usage(usage) {}
-  std::string host;
-  StorageType type;
-  int64 usage;
-};
-
-// The quota manager class.  This class is instantiated per profile and
-// held by the profile.  With the exception of the constructor and the
-// proxy() method, all methods should only be called on the IO thread.
-class WEBKIT_STORAGE_BROWSER_EXPORT QuotaManager
-    : public QuotaTaskObserver,
-      public QuotaEvictionHandler,
-      public base::RefCountedThreadSafe<QuotaManager, QuotaManagerDeleter> {
- public:
-  typedef base::Callback<void(QuotaStatusCode,
-                              int64 /* usage */,
-                              int64 /* quota */)>
-      GetUsageAndQuotaCallback;
-
-  static const int64 kIncognitoDefaultQuotaLimit;
-  static const int64 kNoLimit;
-
-  QuotaManager(bool is_incognito,
-               const base::FilePath& profile_path,
-               base::SingleThreadTaskRunner* io_thread,
-               base::SequencedTaskRunner* db_thread,
-               SpecialStoragePolicy* special_storage_policy);
-
-  // Returns a proxy object that can be used on any thread.
-  QuotaManagerProxy* proxy() { return proxy_.get(); }
-
-  // Called by clients or webapps. Returns usage per host.
-  void GetUsageInfo(const GetUsageInfoCallback& callback);
-
-  // Called by Web Apps.
-  // This method is declared as virtual to allow test code to override it.
-  virtual void GetUsageAndQuotaForWebApps(
-      const GURL& origin,
-      StorageType type,
-      const GetUsageAndQuotaCallback& callback);
-
-  // Called by StorageClients.
-  // This method is declared as virtual to allow test code to override it.
-  //
-  // For UnlimitedStorage origins, this version skips usage and quota handling
-  // to avoid extra query cost.
-  // Do not call this method for apps/user-facing code.
-  virtual void GetUsageAndQuota(
-      const GURL& origin,
-      StorageType type,
-      const GetUsageAndQuotaCallback& callback);
-
-  // Called by clients via proxy.
-  // Client storage should call this method when storage is accessed.
-  // Used to maintain LRU ordering.
-  void NotifyStorageAccessed(QuotaClient::ID client_id,
-                             const GURL& origin,
-                             StorageType type);
-
-  // Called by clients via proxy.
-  // Client storage must call this method whenever they have made any
-  // modifications that change the amount of data stored in their storage.
-  void NotifyStorageModified(QuotaClient::ID client_id,
-                             const GURL& origin,
-                             StorageType type,
-                             int64 delta);
-
-  // Used to avoid evicting origins with open pages.
-  // A call to NotifyOriginInUse must be balanced by a later call
-  // to NotifyOriginNoLongerInUse.
-  void NotifyOriginInUse(const GURL& origin);
-  void NotifyOriginNoLongerInUse(const GURL& origin);
-  bool IsOriginInUse(const GURL& origin) const {
-    return origins_in_use_.find(origin) != origins_in_use_.end();
-  }
-
-  void SetUsageCacheEnabled(QuotaClient::ID client_id,
-                            const GURL& origin,
-                            StorageType type,
-                            bool enabled);
-
-  // DeleteOriginData and DeleteHostData (surprisingly enough) delete data of a
-  // particular StorageType associated with either a specific origin or set of
-  // origins. Each method additionally requires a |quota_client_mask| which
-  // specifies the types of QuotaClients to delete from the origin. This is
-  // specified by the caller as a bitmask built from QuotaClient::IDs. Setting
-  // the mask to QuotaClient::kAllClientsMask will remove all clients from the
-  // origin, regardless of type.
-  virtual void DeleteOriginData(const GURL& origin,
-                                StorageType type,
-                                int quota_client_mask,
-                                const StatusCallback& callback);
-  void DeleteHostData(const std::string& host,
-                      StorageType type,
-                      int quota_client_mask,
-                      const StatusCallback& callback);
-
-  // Called by UI and internal modules.
-  void GetAvailableSpace(const AvailableSpaceCallback& callback);
-  void GetTemporaryGlobalQuota(const QuotaCallback& callback);
-
-  // Ok to call with NULL callback.
-  void SetTemporaryGlobalOverrideQuota(int64 new_quota,
-                                       const QuotaCallback& callback);
-
-  void GetPersistentHostQuota(const std::string& host,
-                              const QuotaCallback& callback);
-  void SetPersistentHostQuota(const std::string& host,
-                              int64 new_quota,
-                              const QuotaCallback& callback);
-  void GetGlobalUsage(StorageType type, const GlobalUsageCallback& callback);
-  void GetHostUsage(const std::string& host, StorageType type,
-                    const UsageCallback& callback);
-  void GetHostUsage(const std::string& host, StorageType type,
-                    QuotaClient::ID client_id,
-                    const UsageCallback& callback);
-
-  bool IsTrackingHostUsage(StorageType type, QuotaClient::ID client_id) const;
-
-  void GetStatistics(std::map<std::string, std::string>* statistics);
-
-  bool IsStorageUnlimited(const GURL& origin, StorageType type) const;
-
-  bool CanQueryDiskSize(const GURL& origin) const {
-    return special_storage_policy_.get() &&
-           special_storage_policy_->CanQueryDiskSize(origin);
-  }
-
-  virtual void GetOriginsModifiedSince(StorageType type,
-                                       base::Time modified_since,
-                                       const GetOriginsCallback& callback);
-
-  bool ResetUsageTracker(StorageType type);
-
-  // Used to register/deregister observers that wish to monitor storage events.
-  void AddStorageObserver(StorageObserver* observer,
-                          const StorageObserver::MonitorParams& params);
-  void RemoveStorageObserver(StorageObserver* observer);
-  void RemoveStorageObserverForFilter(StorageObserver* observer,
-                                      const StorageObserver::Filter& filter);
-
-  // Determines the portion of the temp pool that can be
-  // utilized by a single host (ie. 5 for 20%).
-  static const int kPerHostTemporaryPortion;
-
-  static const int64 kPerHostPersistentQuotaLimit;
-
-  static const char kDatabaseName[];
-
-  static const int kThresholdOfErrorsToBeBlacklisted;
-
-  static const int kEvictionIntervalInMilliSeconds;
-
-  // These are kept non-const so that test code can change the value.
-  // TODO(kinuko): Make this a real const value and add a proper way to set
-  // the quota for syncable storage. (http://crbug.com/155488)
-  static int64 kMinimumPreserveForSystem;
-  static int64 kSyncableStorageDefaultHostQuota;
-
- protected:
-  virtual ~QuotaManager();
-
- private:
-  friend class base::DeleteHelper<QuotaManager>;
-  friend class base::RefCountedThreadSafe<QuotaManager, QuotaManagerDeleter>;
-  friend class content::QuotaManagerTest;
-  friend class content::StorageMonitorTest;
-  friend class content::MockQuotaManager;
-  friend class content::MockStorageClient;
-  friend class quota_internals::QuotaInternalsProxy;
-  friend class QuotaManagerProxy;
-  friend class QuotaTemporaryStorageEvictor;
-  friend struct QuotaManagerDeleter;
-
-  class GetUsageInfoTask;
-
-  class OriginDataDeleter;
-  class HostDataDeleter;
-
-  class GetModifiedSinceHelper;
-  class DumpQuotaTableHelper;
-  class DumpOriginInfoTableHelper;
-
-  typedef QuotaDatabase::QuotaTableEntry QuotaTableEntry;
-  typedef QuotaDatabase::OriginInfoTableEntry OriginInfoTableEntry;
-  typedef std::vector<QuotaTableEntry> QuotaTableEntries;
-  typedef std::vector<OriginInfoTableEntry> OriginInfoTableEntries;
-
-  // Function pointer type used to store the function which returns the
-  // available disk space for the disk containing the given FilePath.
-  typedef int64 (*GetAvailableDiskSpaceFn)(const base::FilePath&);
-
-  typedef base::Callback<void(const QuotaTableEntries&)>
-      DumpQuotaTableCallback;
-  typedef base::Callback<void(const OriginInfoTableEntries&)>
-      DumpOriginInfoTableCallback;
-
-  struct EvictionContext {
-    EvictionContext();
-    virtual ~EvictionContext();
-    GURL evicted_origin;
-    StorageType evicted_type;
-
-    EvictOriginDataCallback evict_origin_data_callback;
-  };
-
-  typedef QuotaEvictionHandler::UsageAndQuotaCallback
-      UsageAndQuotaDispatcherCallback;
-
-  // This initialization method is lazily called on the IO thread
-  // when the first quota manager API is called.
-  // Initialize must be called after all quota clients are added to the
-  // manager by RegisterStorage.
-  void LazyInitialize();
-
-  // Called by clients via proxy.
-  // Registers a quota client to the manager.
-  // The client must remain valid until OnQuotaManagerDestored is called.
-  void RegisterClient(QuotaClient* client);
-
-  UsageTracker* GetUsageTracker(StorageType type) const;
-
-  // Extract cached origins list from the usage tracker.
-  // (Might return empty list if no origin is tracked by the tracker.)
-  void GetCachedOrigins(StorageType type, std::set<GURL>* origins);
-
-  // These internal methods are separately defined mainly for testing.
-  void NotifyStorageAccessedInternal(
-      QuotaClient::ID client_id,
-      const GURL& origin,
-      StorageType type,
-      base::Time accessed_time);
-  void NotifyStorageModifiedInternal(
-      QuotaClient::ID client_id,
-      const GURL& origin,
-      StorageType type,
-      int64 delta,
-      base::Time modified_time);
-
-  void DumpQuotaTable(const DumpQuotaTableCallback& callback);
-  void DumpOriginInfoTable(const DumpOriginInfoTableCallback& callback);
-
-  // Methods for eviction logic.
-  void StartEviction();
-  void DeleteOriginFromDatabase(const GURL& origin, StorageType type);
-
-  void DidOriginDataEvicted(QuotaStatusCode status);
-
-  void ReportHistogram();
-  void DidGetTemporaryGlobalUsageForHistogram(int64 usage,
-                                              int64 unlimited_usage);
-  void DidGetPersistentGlobalUsageForHistogram(int64 usage,
-                                               int64 unlimited_usage);
-
-  // QuotaEvictionHandler.
-  virtual void GetLRUOrigin(
-      StorageType type,
-      const GetLRUOriginCallback& callback) OVERRIDE;
-  virtual void EvictOriginData(
-      const GURL& origin,
-      StorageType type,
-      const EvictOriginDataCallback& callback) OVERRIDE;
-  virtual void GetUsageAndQuotaForEviction(
-      const UsageAndQuotaCallback& callback) OVERRIDE;
-
-  void DidSetTemporaryGlobalOverrideQuota(const QuotaCallback& callback,
-                                          const int64* new_quota,
-                                          bool success);
-  void DidGetPersistentHostQuota(const std::string& host,
-                                 const int64* quota,
-                                 bool success);
-  void DidSetPersistentHostQuota(const std::string& host,
-                                 const QuotaCallback& callback,
-                                 const int64* new_quota,
-                                 bool success);
-  void DidInitialize(int64* temporary_quota_override,
-                     int64* desired_available_space,
-                     bool success);
-  void DidGetLRUOrigin(const GURL* origin,
-                       bool success);
-  void DidGetInitialTemporaryGlobalQuota(QuotaStatusCode status,
-                                         int64 quota_unused);
-  void DidInitializeTemporaryOriginsInfo(bool success);
-  void DidGetAvailableSpace(int64 space);
-  void DidDatabaseWork(bool success);
-
-  void DeleteOnCorrectThread() const;
-
-  void PostTaskAndReplyWithResultForDBThread(
-      const tracked_objects::Location& from_here,
-      const base::Callback<bool(QuotaDatabase*)>& task,
-      const base::Callback<void(bool)>& reply);
-
-  const bool is_incognito_;
-  const base::FilePath profile_path_;
-
-  scoped_refptr<QuotaManagerProxy> proxy_;
-  bool db_disabled_;
-  bool eviction_disabled_;
-  scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
-  scoped_refptr<base::SequencedTaskRunner> db_thread_;
-  mutable scoped_ptr<QuotaDatabase> database_;
-
-  GetLRUOriginCallback lru_origin_callback_;
-  std::set<GURL> access_notified_origins_;
-
-  QuotaClientList clients_;
-
-  scoped_ptr<UsageTracker> temporary_usage_tracker_;
-  scoped_ptr<UsageTracker> persistent_usage_tracker_;
-  scoped_ptr<UsageTracker> syncable_usage_tracker_;
-  // TODO(michaeln): Need a way to clear the cache, drop and
-  // reinstantiate the trackers when they're not handling requests.
-
-  scoped_ptr<QuotaTemporaryStorageEvictor> temporary_storage_evictor_;
-  EvictionContext eviction_context_;
-
-  ClosureQueue db_initialization_callbacks_;
-  AvailableSpaceCallbackQueue available_space_callbacks_;
-  GlobalQuotaCallbackQueue temporary_global_quota_callbacks_;
-  HostQuotaCallbackMap persistent_host_quota_callbacks_;
-
-  bool temporary_quota_initialized_;
-  int64 temporary_quota_override_;
-
-  int64 desired_available_space_;
-
-  // Map from origin to count.
-  std::map<GURL, int> origins_in_use_;
-  // Map from origin to error count.
-  std::map<GURL, int> origins_in_error_;
-
-  scoped_refptr<SpecialStoragePolicy> special_storage_policy_;
-
-  base::RepeatingTimer<QuotaManager> histogram_timer_;
-
-  // Pointer to the function used to get the available disk space. This is
-  // overwritten by QuotaManagerTest in order to attain a deterministic reported
-  // value. The default value points to base::SysInfo::AmountOfFreeDiskSpace.
-  GetAvailableDiskSpaceFn get_disk_space_fn_;
-
-  scoped_ptr<StorageMonitor> storage_monitor_;
-
-  base::WeakPtrFactory<QuotaManager> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(QuotaManager);
-};
-
-struct QuotaManagerDeleter {
-  static void Destruct(const QuotaManager* manager) {
-    manager->DeleteOnCorrectThread();
-  }
-};
-
-}  // namespace quota
-
-#endif  // WEBKIT_BROWSER_QUOTA_QUOTA_MANAGER_H_