Move c/c/e/extension_set to top-level extensions/

chrome/common/extensions/extension_set.h

-// 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_COMMON_EXTENSIONS_EXTENSION_SET_H_
-#define CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_
-
-#include <iterator>
-#include <map>
-#include <string>
-
-#include "base/callback_forward.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/ref_counted.h"
-#include "extensions/common/extension.h"
-#include "url/gurl.h"
-
-// The one true extension container. Extensions are identified by their id.
-// Only one extension can be in the set with a given ID.
-class ExtensionSet {
- public:
-  typedef std::pair<base::FilePath, std::string> ExtensionPathAndDefaultLocale;
-  typedef std::map<std::string, scoped_refptr<const extensions::Extension> >
-      ExtensionMap;
-  typedef base::Callback<void(const extensions::ExtensionIdSet&)>
-      ModificationCallback;
-
-  // Iteration over the values of the map (given that it's an ExtensionSet,
-  // it should iterate like a set iterator).
-  class const_iterator :
-      public std::iterator<std::input_iterator_tag,
-                           scoped_refptr<const extensions::Extension> > {
-   public:
-    const_iterator();
-    const_iterator(const const_iterator& other);
-    explicit const_iterator(ExtensionMap::const_iterator it);
-    const_iterator& operator++() {
-      ++it_;
-      return *this;
-    }
-    const_iterator operator++(int) {
-      const const_iterator old(*this);
-      ++it_;
-      return old;
-    }
-    const scoped_refptr<const extensions::Extension>& operator*() const {
-      return it_->second;
-    }
-    const scoped_refptr<const extensions::Extension>* operator->() const {
-      return &it_->second;
-    }
-    bool operator!=(const const_iterator& other) const {
-      return it_ != other.it_;
-    }
-    bool operator==(const const_iterator& other) const {
-      return it_ == other.it_;
-    }
-
-   private:
-    ExtensionMap::const_iterator it_;
-  };
-
-  ExtensionSet();
-  ~ExtensionSet();
-
-  size_t size() const;
-  bool is_empty() const;
-
-  // Iteration support.
-  const_iterator begin() const { return const_iterator(extensions_.begin()); }
-  const_iterator end() const { return const_iterator(extensions_.end()); }
-
-  // Returns true if the set contains the specified extension.
-  bool Contains(const std::string& id) const;
-
-  // Adds the specified extension to the set. The set becomes an owner. Any
-  // previous extension with the same ID is removed.
-  // Returns true if there is no previous extension.
-  bool Insert(const scoped_refptr<const extensions::Extension>& extension);
-
-  // Copies different items from |extensions| to the current set and returns
-  // whether anything changed.
-  bool InsertAll(const ExtensionSet& extensions);
-
-  // Removes the specified extension.
-  // Returns true if the set contained the specified extnesion.
-  bool Remove(const std::string& id);
-
-  // Removes all extensions.
-  void Clear();
-
-  // Returns the extension ID, or empty if none. This includes web URLs that
-  // are part of an extension's web extent.
-  std::string GetExtensionOrAppIDByURL(const GURL& url) const;
-
-  // Returns the Extension, or NULL if none.  This includes web URLs that are
-  // part of an extension's web extent.
-  // NOTE: This can return NULL if called before UpdateExtensions receives
-  // bulk extension data (e.g. if called from
-  // EventBindings::HandleContextCreated)
-  const extensions::Extension* GetExtensionOrAppByURL(const GURL& url) const;
-
-  // Returns the hosted app whose web extent contains the URL.
-  const extensions::Extension* GetHostedAppByURL(const GURL& url) const;
-
-  // Returns a hosted app that contains any URL that overlaps with the given
-  // extent, if one exists.
-  const extensions::Extension* GetHostedAppByOverlappingWebExtent(
-      const extensions::URLPatternSet& extent) const;
-
-  // Returns true if |new_url| is in the extent of the same extension as
-  // |old_url|.  Also returns true if neither URL is in an app.
-  bool InSameExtent(const GURL& old_url, const GURL& new_url) const;
-
-  // Look up an Extension object by id.
-  const extensions::Extension* GetByID(const std::string& id) const;
-
-  // Gets the IDs of all extensions in the set.
-  extensions::ExtensionIdSet GetIDs() const;
-
-  // Returns true if |info| should get extension api bindings and be permitted
-  // to make api calls. Note that this is independent of what extension
-  // permissions the given extension has been granted.
-  bool ExtensionBindingsAllowed(const GURL& url) const;
-
-  void set_modification_callback(
-      const ModificationCallback& modification_callback) {
-    modification_callback_ = modification_callback;
-  }
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(ExtensionSetTest, ExtensionSet);
-
-  ExtensionMap extensions_;
-
-  // If non-null, called with the extension ids in this set after a modification
-  // occurred. This is not called on Clear() which is typically used when
-  // discarding the set (e.g., on shutdown) and we do not want to track that as
-  // a real modification.
-  ModificationCallback modification_callback_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionSet);
-};
-
-#endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_SET_H_