Move Windows Sandbox, trybots version (don't commit me!)

sandbox/src/sidestep_resolver.h

-// 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.
-
-#ifndef SANDBOX_SRC_SIDESTEP_RESOLVER_H__
-#define SANDBOX_SRC_SIDESTEP_RESOLVER_H__
-
-#include "base/basictypes.h"
-#include "sandbox/src/nt_internals.h"
-#include "sandbox/src/resolver.h"
-
-namespace sandbox {
-
-// This is the concrete resolver used to perform sidestep interceptions.
-class SidestepResolverThunk : public ResolverThunk {
- public:
-  SidestepResolverThunk() {}
-  virtual ~SidestepResolverThunk() {}
-
-  // Implementation of Resolver::Setup.
-  virtual NTSTATUS Setup(const void* target_module,
-                         const void* interceptor_module,
-                         const char* target_name,
-                         const char* interceptor_name,
-                         const void* interceptor_entry_point,
-                         void* thunk_storage,
-                         size_t storage_bytes,
-                         size_t* storage_used);
-
-  // Implementation of Resolver::GetThunkSize.
-  virtual size_t GetThunkSize() const;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(SidestepResolverThunk);
-};
-
-// This is the concrete resolver used to perform smart sidestep interceptions.
-// This means basically a sidestep interception that skips the interceptor when
-// the caller resides on the same dll being intercepted. It is intended as
-// a helper only, because that determination is not infallible.
-class SmartSidestepResolverThunk : public SidestepResolverThunk {
- public:
-  SmartSidestepResolverThunk() {}
-  virtual ~SmartSidestepResolverThunk() {}
-
-  // Implementation of Resolver::Setup.
-  virtual NTSTATUS Setup(const void* target_module,
-                         const void* interceptor_module,
-                         const char* target_name,
-                         const char* interceptor_name,
-                         const void* interceptor_entry_point,
-                         void* thunk_storage,
-                         size_t storage_bytes,
-                         size_t* storage_used);
-
-  // Implementation of Resolver::GetThunkSize.
-  virtual size_t GetThunkSize() const;
-
- private:
-  // Performs the actual call to the interceptor if the conditions are correct
-  // (as determined by IsInternalCall).
-  static void SmartStub();
-
-  // Returns true if return_address is inside the module loaded at base.
-  static bool IsInternalCall(const void* base, void* return_address);
-
-  DISALLOW_COPY_AND_ASSIGN(SmartSidestepResolverThunk);
-};
-
-}  // namespace sandbox
-
-
-#endif  // SANDBOX_SRC_SIDESTEP_RESOLVER_H__