resource_context.h revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
6#define CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
7
8#include "base/basictypes.h"
9#include "base/memory/scoped_ptr.h"
10#include "base/supports_user_data.h"
11#include "build/build_config.h"
12#include "content/common/content_export.h"
13
14class GURL;
15
16namespace appcache {
17class AppCacheService;
18}
19
20namespace net {
21class ClientCertStore;
22class HostResolver;
23class URLRequestContext;
24}
25
26namespace content {
27
28// ResourceContext contains the relevant context information required for
29// resource loading. It lives on the IO thread, although it is constructed on
30// the UI thread. It must be destructed on the IO thread.
31class CONTENT_EXPORT ResourceContext : public base::SupportsUserData {
32 public:
33#if defined(OS_IOS)
34  virtual ~ResourceContext() {}
35#else
36  ResourceContext();
37  virtual ~ResourceContext();
38#endif
39  virtual net::HostResolver* GetHostResolver() = 0;
40
41  // DEPRECATED: This is no longer a valid given isolated apps/sites and
42  // storage partitioning. This getter returns the default context associated
43  // with a BrowsingContext.
44  virtual net::URLRequestContext* GetRequestContext() = 0;
45
46  // Get platform ClientCertStore. May return NULL.
47  virtual scoped_ptr<net::ClientCertStore> CreateClientCertStore();
48
49  // Returns true if microphone access is allowed for |origin|. Used to
50  // determine what level of authorization is given to |origin| to access
51  // resource metadata.
52  virtual bool AllowMicAccess(const GURL& origin) = 0;
53
54  // Returns true if web camera access is allowed for |origin|. Used to
55  // determine what level of authorization is given to |origin| to access
56  // resource metadata.
57  virtual bool AllowCameraAccess(const GURL& origin) = 0;
58
59  // Returns a random salt string that is used for creating media device IDs.
60  // The salt should be stored in the current user profile and should be reset
61  // if cookies are cleared. Returns an empty string per default.
62  // TODO(perkj): Make this method pure virtual when crbug/315022 is fixed.
63  virtual std::string GetMediaDeviceIDSalt();
64};
65
66}  // namespace content
67
68#endif  // CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
69