Sandbox policy and intercepts for the MITIGATION_WIN32K_DISABLE policy for renderer processes.

sandbox/win/src/process_mitigations_win32k_interception.h

Index: sandbox/win/src/process_mitigations_win32k_interception.h
diff --git a/sandbox/win/src/process_mitigations_win32k_interception.h b/sandbox/win/src/process_mitigations_win32k_interception.h
new file mode 100644
index 0000000000000000000000000000000000000000..25f05c0a5848de7ccd83b0235310d2c346dea203
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+++ b/sandbox/win/src/process_mitigations_win32k_interception.h
@@ -0,0 +1,44 @@
+// Copyright (c) 2014 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_PROCESS_MITIGATIONS_WIN32K_INTERCEPTION_H_
+#define SANDBOX_SRC_PROCESS_MITIGATIONS_WIN32K_INTERCEPTION_H_
+
+#include <windows.h>
+#include "base/basictypes.h"
+#include "sandbox/win/src/sandbox_types.h"
+
+namespace sandbox {
+
+extern "C" {
+
+typedef BOOL (WINAPI* GdiDllInitializeFunction) (
+    HANDLE dll,
+    DWORD reason,
+    LPVOID reserved);
+
+typedef HGDIOBJ (WINAPI *GetStockObjectFunction) (int object);
+
+typedef ATOM (WINAPI *RegisterClassWFunction) (const WNDCLASS* wnd_class);
+
+// Interceptors for GdiDllInitialize/GetStockObject/RegisterClassW.
+SANDBOX_INTERCEPT BOOL WINAPI TargetGdiDllInitialize(
+    GdiDllInitializeFunction orig_gdi_dll_initialize,
+    HANDLE dll,
+    DWORD reason);
+
+SANDBOX_INTERCEPT HGDIOBJ WINAPI TargetGetStockObject(
+    GetStockObjectFunction orig_get_stock_object,
+    int object);
+
+SANDBOX_INTERCEPT ATOM WINAPI TargetRegisterClassW(
+    RegisterClassWFunction orig_register_class_function,
+    const WNDCLASS* wnd_class);
+
+}  // extern "C"
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_SRC_PROCESS_MITIGATIONS_WIN32K_INTERCEPTION_H_
+