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

sandbox/win/src/interceptors_64.h

Index: sandbox/win/src/interceptors_64.h
diff --git a/sandbox/win/src/interceptors_64.h b/sandbox/win/src/interceptors_64.h
index 2ff31a8d0c393192ccb0232136d66d3dc347fe70..7368ceb845046d46566685d74bdf0ce15602b73a 100644
--- a/sandbox/win/src/interceptors_64.h
+++ b/sandbox/win/src/interceptors_64.h
@@ -154,6 +154,20 @@ SANDBOX_INTERCEPT NTSTATUS WINAPI TargetNtOpenEvent64(
     PHANDLE event_handle, ACCESS_MASK desired_access,
     POBJECT_ATTRIBUTES object_attributes);
 
+// -----------------------------------------------------------------------
+// Interceptors handled by the process mitigations win32k lockdown code.
+
+// Interceptor for the GdiDllInitialize function.
+SANDBOX_INTERCEPT BOOL WINAPI TargetGdiDllInitialize64(
+    HANDLE dll,
+    DWORD reason);
+
+// Interceptor for the GetStockObject function.
+SANDBOX_INTERCEPT HGDIOBJ WINAPI TargetGetStockObject64(int object);
+
+// Interceptor for the RegisterClassW function.
+SANDBOX_INTERCEPT ATOM WINAPI TargetRegisterClassW64(const WNDCLASS* wnd_class);
+
 }  // extern "C"
 
 }  // namespace sandbox