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// Copyright (c) 2010 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.


#include "base/file_path.h"
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "base/time.h"
#include "chrome/browser/in_process_webkit/dom_storage_context.h"

class WebKitThread;

// There's one WebKitContext per profile.  Various DispatcherHost classes
// have a pointer to the Context to store shared state.  Unfortunately, this
// class has become a bit of a dumping ground for calls made on the UI thread
// that need to be proxied over to the WebKit thread.
// This class is created on the UI thread and accessed on the UI, IO, and WebKit
// threads.
class WebKitContext : public base::RefCountedThreadSafe<WebKitContext> {
  WebKitContext(const FilePath& data_path, bool is_incognito);

  const FilePath& data_path() const { return data_path_; }
  bool is_incognito() const { return is_incognito_; }
  DOMStorageContext* dom_storage_context() {
    return dom_storage_context_.get();

#ifdef UNIT_TEST
  // For unit tests, allow specifying a DOMStorageContext directly so it can be
  // mocked.
  void set_dom_storage_context(DOMStorageContext* dom_storage_context) {

  // Tells the DOMStorageContext to purge any memory it does not need.
  void PurgeMemory();

  // Tell all children (where applicable) to delete any objects that were
  // last modified on or after the following time.
  void DeleteDataModifiedSince(const base::Time& cutoff,
                               const char* url_scheme_to_be_skipped);

  // Delete the session storage namespace associated with this id.  Called from
  // the UI thread.
  void DeleteSessionStorageNamespace(int64 session_storage_namespace_id);

  friend class base::RefCountedThreadSafe<WebKitContext>;

  // Copies of profile data that can be accessed on any thread.
  const FilePath data_path_;
  const bool is_incognito_;

  scoped_ptr<DOMStorageContext> dom_storage_context_;



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