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// Copyright 2014 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_BROWSING_DATA_BROWSING_DATA_CHANNEL_ID_HELPER_H_
#define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_CHANNEL_ID_HELPER_H_
#include <stddef.h>
#include <map>
#include <string>
#include "base/callback.h"
#include "base/macros.h"
#include "net/ssl/channel_id_store.h"
namespace net {
class URLRequestContextGetter;
}
// BrowsingDataChannelIDHelper is an interface for classes dealing with
// aggregating and deleting browsing data stored in the channel ID store.
// A client of this class need to call StartFetching from the UI thread to
// initiate the flow, and it'll be notified by the callback in its UI thread at
// some later point.
class BrowsingDataChannelIDHelper
: public base::RefCountedThreadSafe<BrowsingDataChannelIDHelper> {
public:
// Create a BrowsingDataChannelIDHelper instance for the given
// |request_context|.
static BrowsingDataChannelIDHelper* Create(
net::URLRequestContextGetter* request_context);
typedef base::Callback<
void(const net::ChannelIDStore::ChannelIDList&)>
FetchResultCallback;
// Starts the fetching process, which will notify its completion via
// callback.
// This must be called only in the UI thread.
virtual void StartFetching(const FetchResultCallback& callback) = 0;
// Requests a single channel ID to be deleted. This must be called in
// the UI thread.
virtual void DeleteChannelID(const std::string& server_id) = 0;
protected:
friend class base::RefCountedThreadSafe<BrowsingDataChannelIDHelper>;
virtual ~BrowsingDataChannelIDHelper() {}
};
// This class is a thin wrapper around BrowsingDataChannelIDHelper that
// does not fetch its information from the ChannelIDService, but gets them
// passed as a parameter during construction.
class CannedBrowsingDataChannelIDHelper
: public BrowsingDataChannelIDHelper {
public:
CannedBrowsingDataChannelIDHelper();
// Add an ChannelID to the set of canned channel IDs that is
// returned by this helper.
void AddChannelID(
const net::ChannelIDStore::ChannelID& channel_id);
// Clears the list of canned channel IDs.
void Reset();
// True if no ChannelIDs are currently stored.
bool empty() const;
// Returns the current number of channel IDs.
size_t GetChannelIDCount() const;
// BrowsingDataChannelIDHelper methods.
void StartFetching(const FetchResultCallback& callback) override;
void DeleteChannelID(const std::string& server_id) override;
private:
~CannedBrowsingDataChannelIDHelper() override;
void FinishFetching(const FetchResultCallback& callback);
typedef std::map<std::string, net::ChannelIDStore::ChannelID>
ChannelIDMap;
ChannelIDMap channel_id_map_;
DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataChannelIDHelper);
};
#endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_CHANNEL_ID_HELPER_H_
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