Ensure that the DirectWrite font cache works in Chrome canary on Windows 8+ with AppContainer prote…

sandbox/win/src/sandbox_policy_base.h

 // Copyright (c) 2011 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 SANDBOX_WIN_SRC_SANDBOX_POLICY_BASE_H_
 #define SANDBOX_WIN_SRC_SANDBOX_POLICY_BASE_H_
 
 #include <windows.h>
 
 #include <list>
@@ skipping 49 matching lines @@
   MitigationFlags GetDelayedProcessMitigations() const override;
   void SetStrictInterceptions() override;
   ResultCode SetStdoutHandle(HANDLE handle) override;
   ResultCode SetStderrHandle(HANDLE handle) override;
   ResultCode AddRule(SubSystem subsystem,
                      Semantics semantics,
                      const wchar_t* pattern) override;
   ResultCode AddDllToUnload(const wchar_t* dll_name) override;
   ResultCode AddKernelObjectToClose(const base::char16* handle_type,
                                     const base::char16* handle_name) override;
+  void AddHandleToShare(HANDLE handle) override;
+  HandleList GetHandlesBeingShared() override;
 
   // Dispatcher:
   Dispatcher* OnMessageReady(IPCParams* ipc,
                              CallbackGeneric* callback) override;
   bool SetupService(InterceptionManager* manager, int service) override;
 
   // Creates a Job object with the level specified in a previous call to
   // SetJobLevel().
   ResultCode MakeJobObject(HANDLE* job);
 
@@ skipping 76 matching lines @@
   // given type.
   HandleCloser handle_closer_;
   std::vector<base::string16> capabilities_;
   scoped_ptr<AppContainerAttributes> appcontainer_list_;
   PSID lowbox_sid_;
 
   static HDESK alternate_desktop_handle_;
   static HWINSTA alternate_winstation_handle_;
   static IntegrityLevel alternate_desktop_integrity_level_label_;
 
+  // Contains the list of handles being shared with the target process.
+  // This list contains handles other than the stderr/stdout handles which are
+  // shared with the target at times.
+  std::vector<HANDLE> handles_to_share_;
+
   DISALLOW_COPY_AND_ASSIGN(PolicyBase);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_WIN_SRC_SANDBOX_POLICY_BASE_H_