| // Copyright 2015 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 CONTENT_COMMON_SITE_ISOLATION_POLICY_H_ |
| #define CONTENT_COMMON_SITE_ISOLATION_POLICY_H_ |
| |
| #include "base/macros.h" |
| #include "content/common/content_export.h" |
| #include "url/gurl.h" |
| |
| namespace content { |
| |
| // A centralized place for making policy decisions about out-of-process iframes, |
| // site isolation, --site-per-process, and related features. |
| // |
| // This is currently static because all these modes are controlled by command- |
| // line flags. |
| // |
| // These methods can be called from any thread. |
| class CONTENT_EXPORT SiteIsolationPolicy { |
| public: |
| // Returns true if the current process model might allow the use of cross- |
| // process iframes. This should typically used to avoid executing codepaths |
| // that only matter for cross-process iframes, to protect the default |
| // behavior. |
| // |
| // Note: Since cross-process frames will soon be possible by default, usage |
| // should be limited to temporary stop-gaps. |
| // |
| // Instead of calling this method, prefer to examine object state to see |
| // whether a particular frame happens to have a cross-process relationship |
| // with another, or to consult DoesSiteRequireDedicatedProcess() to see if a |
| // particular site merits protection. |
| static bool AreCrossProcessFramesPossible(); |
| |
| // Returns true if every site should be placed in a dedicated process. |
| static bool UseDedicatedProcessesForAllSites(); |
| |
| // Returns true if third-party subframes of a page should be kept in a |
| // different process from the main frame. |
| static bool IsTopDocumentIsolationEnabled(); |
| |
| private: |
| SiteIsolationPolicy(); // Not instantiable. |
| |
| DISALLOW_COPY_AND_ASSIGN(SiteIsolationPolicy); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_SITE_ISOLATION_POLICY_H_ |