Move content_settings_observer.h, content_settings_provider.h, content_settings_rule.* to the compo…

chrome/browser/content_settings/content_settings_provider.h

-// Copyright (c) 2011 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.
-
-// Interface for objects providing content setting rules.
-
-#ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PROVIDER_H_
-#define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PROVIDER_H_
-
-#define NO_RESOURCE_IDENTIFIER std::string()
-
-#include <string>
-#include <vector>
-
-#include "base/values.h"
-#include "components/content_settings/core/common/content_settings_types.h"
-
-class ContentSettingsPattern;
-
-namespace content_settings {
-
-struct Rule;
-class RuleIterator;
-
-typedef std::string ResourceIdentifier;
-
-class ProviderInterface {
- public:
-  virtual ~ProviderInterface() {}
-
-  // Returns a |RuleIterator| over the content setting rules stored by this
-  // provider. If |incognito| is true, the iterator returns only the content
-  // settings which are applicable to the incognito mode and differ from the
-  // normal mode. Otherwise, it returns the content settings for the normal
-  // mode. The caller takes the ownership of the returned |RuleIterator|. It is
-  // not allowed to call other |ProviderInterface| functions (including
-  // |GetRuleIterator|) for the same provider until the |RuleIterator| is
-  // destroyed.
-  virtual RuleIterator* GetRuleIterator(
-      ContentSettingsType content_type,
-      const ResourceIdentifier& resource_identifier,
-      bool incognito) const = 0;
-
-  // Asks the provider to set the website setting for a particular
-  // |primary_pattern|, |secondary_pattern|, |content_type| tuple. If the
-  // provider accepts the setting it returns true and takes the ownership of the
-  // |value|. Otherwise false is returned and the ownership of the |value| stays
-  // with the caller.
-  //
-  // This should only be called on the UI thread, and not after
-  // ShutdownOnUIThread has been called.
-  virtual bool SetWebsiteSetting(
-      const ContentSettingsPattern& primary_pattern,
-      const ContentSettingsPattern& secondary_pattern,
-      ContentSettingsType content_type,
-      const ResourceIdentifier& resource_identifier,
-      base::Value* value) = 0;
-
-  // Resets all content settings for the given |content_type| and empty resource
-  // identifier to CONTENT_SETTING_DEFAULT.
-  //
-  // This should only be called on the UI thread, and not after
-  // ShutdownOnUIThread has been called.
-  virtual void ClearAllContentSettingsRules(
-      ContentSettingsType content_type) = 0;
-
-  // Detaches the Provider from all Profile-related objects like PrefService.
-  // This methods needs to be called before destroying the Profile.
-  // Afterwards, none of the methods above that should only be called on the UI
-  // thread should be called anymore.
-  virtual void ShutdownOnUIThread() = 0;
-};
-
-}  // namespace content_settings
-
-#endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PROVIDER_H_