Move declarative api files to extensions/browser/api/declarative.

chrome/browser/extensions/api/declarative/rules_registry.h

Index: chrome/browser/extensions/api/declarative/rules_registry.h
diff --git a/chrome/browser/extensions/api/declarative/rules_registry.h b/chrome/browser/extensions/api/declarative/rules_registry.h
deleted file mode 100644
index 14c7e211684f0ddd729462396ee9ad37a2f9b718..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/declarative/rules_registry.h
+++ /dev/null
@@ -1,296 +0,0 @@
-// Copyright (c) 2012 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_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_H__
-#define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_H__
-
-#include <map>
-#include <set>
-#include <string>
-#include <vector>
-
-#include "base/callback_forward.h"
-#include "base/compiler_specific.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/common/extensions/api/events.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "extensions/common/one_shot_event.h"
-
-namespace content {
-class BrowserContext;
-}
-
-namespace base {
-class Value;
-}  // namespace base
-
-namespace extensions {
-
-class RulesCacheDelegate;
-
-// A base class for RulesRegistries that takes care of storing the
-// RulesRegistry::Rule objects. It contains all the methods that need to run on
-// the registry thread; methods that need to run on the UI thread are separated
-// in the RulesCacheDelegate object.
-class RulesRegistry : public base::RefCountedThreadSafe<RulesRegistry> {
- public:
-  typedef extensions::api::events::Rule Rule;
-  struct WebViewKey {
-    int embedder_process_id;
-    int webview_instance_id;
-    WebViewKey(int embedder_process_id, int webview_instance_id)
-        : embedder_process_id(embedder_process_id),
-          webview_instance_id(webview_instance_id) {}
-    bool operator<(const WebViewKey& other) const {
-      return embedder_process_id < other.embedder_process_id ||
-          ((embedder_process_id == other.embedder_process_id) &&
-           (webview_instance_id < other.webview_instance_id));
-    }
-  };
-
-  enum Defaults { DEFAULT_PRIORITY = 100 };
-  // After the RulesCacheDelegate object (the part of the registry which runs on
-  // the UI thread) is created, a pointer to it is passed to |*ui_part|.
-  // In tests, |browser_context| and |ui_part| can be NULL (at the same time).
-  // In that case the storage functionality disabled (no RulesCacheDelegate
-  // object created).
-  RulesRegistry(content::BrowserContext* browser_context,
-                const std::string& event_name,
-                content::BrowserThread::ID owner_thread,
-                RulesCacheDelegate* cache_delegate,
-                const WebViewKey& webview_key);
-
-  const OneShotEvent& ready() const {
-    return ready_;
-  }
-
-  // RulesRegistry implementation:
-
-  // Registers |rules|, owned by |extension_id| to this RulesRegistry.
-  // If a concrete RuleRegistry does not support some of the rules,
-  // it may ignore them.
-  //
-  // |rules| is a list of Rule instances following the definition of the
-  // declarative extension APIs. It is guaranteed that each rule in |rules| has
-  // a unique name within the scope of |extension_id| that has not been
-  // registered before, unless it has been removed again.
-  // The ownership of rules remains with the caller.
-  //
-  // Returns an empty string if the function is successful or an error
-  // message otherwise.
-  //
-  // IMPORTANT: This function is atomic. Either all rules that are deemed
-  // relevant are added or none.
-  std::string AddRules(
-      const std::string& extension_id,
-      const std::vector<linked_ptr<RulesRegistry::Rule> >& rules);
-
-  // Unregisters all rules listed in |rule_identifiers| and owned by
-  // |extension_id| from this RulesRegistry.
-  // Some or all IDs in |rule_identifiers| may not be stored in this
-  // RulesRegistry and are ignored.
-  //
-  // Returns an empty string if the function is successful or an error
-  // message otherwise.
-  //
-  // IMPORTANT: This function is atomic. Either all rules that are deemed
-  // relevant are removed or none.
-  std::string RemoveRules(
-      const std::string& extension_id,
-      const std::vector<std::string>& rule_identifiers);
-
-  // Same as RemoveAllRules but acts on all rules owned by |extension_id|.
-  std::string RemoveAllRules(const std::string& extension_id);
-
-  // Returns all rules listed in |rule_identifiers| and owned by |extension_id|
-  // registered in this RuleRegistry. Entries in |rule_identifiers| that
-  // are unknown are ignored.
-  //
-  // The returned rules are stored in |out|. Ownership is passed to the caller.
-  void GetRules(const std::string& extension_id,
-                const std::vector<std::string>& rule_identifiers,
-                std::vector<linked_ptr<RulesRegistry::Rule> >* out);
-
-  // Same as GetRules but returns all rules owned by |extension_id|.
-  void GetAllRules(const std::string& extension_id,
-                   std::vector<linked_ptr<RulesRegistry::Rule> >* out);
-
-  // Called to notify the RulesRegistry that the extension availability has
-  // changed, so that the registry can update which rules are active.
-  void OnExtensionUnloaded(const std::string& extension_id);
-  void OnExtensionUninstalled(const std::string& extension_id);
-  void OnExtensionLoaded(const std::string& extension_id);
-
-  // Returns the number of entries in used_rule_identifiers_ for leak detection.
-  // Every ExtensionId counts as one entry, even if it contains no rules.
-  size_t GetNumberOfUsedRuleIdentifiersForTesting() const;
-
-  // Returns the RulesCacheDelegate. This is used for testing.
-  RulesCacheDelegate* rules_cache_delegate_for_testing() const {
-    return cache_delegate_.get();
-  }
-
-  // Returns the context where the rules registry lives.
-  content::BrowserContext* browser_context() { return browser_context_; }
-
-  // Returns the ID of the thread on which the rules registry lives.
-  // It is safe to call this function from any thread.
-  content::BrowserThread::ID owner_thread() const { return owner_thread_; }
-
-  // The name of the event with which rules are registered.
-  const std::string& event_name() const { return event_name_; }
-
-  // The key that identifies the webview (or tabs) in which these rules apply.
-  // If the rules apply to the main browser, then this returns the tuple (0, 0).
-  const WebViewKey& webview_key() const {
-    return webview_key_;
-  }
-
- protected:
-  virtual ~RulesRegistry();
-
-  // The precondition for calling this method is that all rules have unique IDs.
-  // AddRules establishes this precondition and calls into this method.
-  // Stored rules already meet this precondition and so they avoid calling
-  // CheckAndFillInOptionalRules for improved performance.
-  //
-  // Returns an empty string if the function is successful or an error
-  // message otherwise.
-  std::string AddRulesNoFill(
-      const std::string& extension_id,
-      const std::vector<linked_ptr<RulesRegistry::Rule> >& rules);
-
-  // These functions need to apply the rules to the browser, while the base
-  // class will handle defaulting empty fields before calling *Impl, and will
-  // automatically cache the rules and re-call *Impl on browser startup.
-  virtual std::string AddRulesImpl(
-      const std::string& extension_id,
-      const std::vector<linked_ptr<RulesRegistry::Rule> >& rules) = 0;
-  virtual std::string RemoveRulesImpl(
-      const std::string& extension_id,
-      const std::vector<std::string>& rule_identifiers) = 0;
-  virtual std::string RemoveAllRulesImpl(
-      const std::string& extension_id) = 0;
-
- private:
-  friend class base::RefCountedThreadSafe<RulesRegistry>;
-  friend class RulesCacheDelegate;
-
-  typedef std::string ExtensionId;
-  typedef std::string RuleId;
-  typedef std::pair<ExtensionId, RuleId> RulesDictionaryKey;
-  typedef std::map<RulesDictionaryKey, linked_ptr<RulesRegistry::Rule> >
-      RulesDictionary;
-  enum ProcessChangedRulesState {
-    // ProcessChangedRules can never be called, |cache_delegate_| is NULL.
-    NEVER_PROCESS,
-    // A task to call ProcessChangedRules is scheduled for future execution.
-    SCHEDULED_FOR_PROCESSING,
-    // No task to call ProcessChangedRules is scheduled yet, but it is possible
-    // to schedule one.
-    NOT_SCHEDULED_FOR_PROCESSING
-  };
-  typedef std::map<ExtensionId, ProcessChangedRulesState> ProcessStateMap;
-
-  base::WeakPtr<RulesRegistry> GetWeakPtr() {
-    DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
-    return weak_ptr_factory_.GetWeakPtr();
-  }
-
-  // Common processing after extension's rules have changed.
-  void ProcessChangedRules(const std::string& extension_id);
-
-  // Calls ProcessChangedRules if
-  // |process_changed_rules_requested_(extension_id)| ==
-  // NOT_SCHEDULED_FOR_PROCESSING.
-  void MaybeProcessChangedRules(const std::string& extension_id);
-
-  // This method implements the functionality of RemoveAllRules, except for not
-  // calling MaybeProcessChangedRules. That way updating the rules store and
-  // extension prefs is avoided. This method is called when an extension is
-  // uninstalled, that way there is no clash with the preferences being wiped.
-  std::string RemoveAllRulesNoStoreUpdate(const std::string& extension_id);
-
-  void MarkReady(base::Time storage_init_time);
-
-  // Deserialize the rules from the given Value object and add them to the
-  // RulesRegistry.
-  void DeserializeAndAddRules(const std::string& extension_id,
-                              scoped_ptr<base::Value> rules);
-
-  // The context to which this rules registry belongs.
-  content::BrowserContext* browser_context_;
-
-  // The ID of the thread on which the rules registry lives.
-  const content::BrowserThread::ID owner_thread_;
-
-  // The name of the event with which rules are registered.
-  const std::string event_name_;
-
-  // The key that identifies the context in which these rules apply.
-  WebViewKey webview_key_;
-
-  RulesDictionary rules_;
-
-  // Signaled when we have finished reading from storage for all extensions that
-  // are loaded on startup.
-  OneShotEvent ready_;
-
-  // The factory needs to be declared before |cache_delegate_|, so that it can
-  // produce a pointer as a construction argument for |cache_delegate_|.
-  base::WeakPtrFactory<RulesRegistry> weak_ptr_factory_;
-
-  // |cache_delegate_| is owned by the registry service. If |cache_delegate_| is
-  // NULL, then the storage functionality is disabled (this is used in tests).
-  // This registry cannot own |cache_delegate_| because during the time after
-  // rules registry service shuts down on UI thread, and the registry is
-  // destroyed on its thread, the use of the |cache_delegate_| would not be
-  // safe. The registry only ever associates with one RulesCacheDelegate
-  // instance.
-  base::WeakPtr<RulesCacheDelegate> cache_delegate_;
-
-  ProcessStateMap process_changed_rules_requested_;
-
-  // Returns whether any existing rule is registered with identifier |rule_id|
-  // for extension |extension_id|.
-  bool IsUniqueId(const std::string& extension_id,
-                  const std::string& rule_id) const;
-
-  // Creates an ID that is unique within the scope of|extension_id|.
-  std::string GenerateUniqueId(const std::string& extension_id);
-
-  // Verifies that all |rules| have unique IDs or initializes them with
-  // unique IDs if they don't have one. In case of duplicate IDs, this function
-  // returns a non-empty error message.
-  std::string CheckAndFillInOptionalRules(
-    const std::string& extension_id,
-    const std::vector<linked_ptr<RulesRegistry::Rule> >& rules);
-
-  // Initializes the priority fields in case they have not been set.
-  void FillInOptionalPriorities(
-      const std::vector<linked_ptr<RulesRegistry::Rule> >& rules);
-
-  // Removes all |identifiers| of |extension_id| from |used_rule_identifiers_|.
-  void RemoveUsedRuleIdentifiers(const std::string& extension_id,
-                                 const std::vector<std::string>& identifiers);
-
-  // Same as RemoveUsedRuleIdentifiers but operates on all rules of
-  // |extension_id|.
-  void RemoveAllUsedRuleIdentifiers(const std::string& extension_id);
-
-  typedef std::string RuleIdentifier;
-  typedef std::map<ExtensionId, std::set<RuleIdentifier> > RuleIdentifiersMap;
-  RuleIdentifiersMap used_rule_identifiers_;
-  int last_generated_rule_identifier_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(RulesRegistry);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_RULES_REGISTRY_H__