Add SeccompSupportDetector for Android.

chrome/common/chrome_utility_messages.h

 // Copyright (c) 2012 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.
 
 // Multiply-included message file, so no include guard.
 
 #if defined(OS_WIN)
 #include <Windows.h>
 #endif  // defined(OS_WIN)
 
@@ skipping 119 matching lines @@
 IPC_MESSAGE_CONTROL5(ChromeUtilityMsg_GetOpenFileName,
                      HWND /* owner */,
                      DWORD /* flags */,
                      GetOpenFileNameFilter /* filter */,
                      base::FilePath /* initial_directory */,
                      base::FilePath /* filename */)
 IPC_MESSAGE_CONTROL1(ChromeUtilityMsg_GetSaveFileName,
                      ChromeUtilityMsg_GetSaveFileName_Params /* params */)
 #endif  // defined(OS_WIN)
 
+#if defined(OS_ANDROID)
+// Instructs the utility process to detect support for seccomp-bpf,
+// and the result is reported through
+// ChromeUtilityHostMsg_DetectSeccompSupport_Result.
+IPC_MESSAGE_CONTROL0(ChromeUtilityMsg_DetectSeccompSupport)
+#endif
+
 //------------------------------------------------------------------------------
 // Utility process host messages:
 // These are messages from the utility process to the browser.
 
 // Reply when the utility process successfully parsed a JSON string.
 //
 // WARNING: The result can be of any Value subclass type, but we can't easily
 // pass indeterminate value types by const object reference with our IPC macros,
 // so we put the result Value into a ListValue. Handlers should examine the
 // first (and only) element of the ListValue for the actual result.
@@ skipping 43 matching lines @@
 IPC_MESSAGE_CONTROL2(ChromeUtilityHostMsg_GetOpenFileName_Result,
                      base::FilePath /* directory */,
                      std::vector<base::FilePath> /* filenames */)
 IPC_MESSAGE_CONTROL0(ChromeUtilityHostMsg_GetSaveFileName_Failed)
 IPC_MESSAGE_CONTROL2(ChromeUtilityHostMsg_GetSaveFileName_Result,
                      base::FilePath /* path */,
                      int /* one_based_filter_index  */)
 IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_BuildDirectWriteFontCache,
                      base::FilePath /* cache file path */)
 #endif  // defined(OS_WIN)
+
+#if defined(OS_ANDROID)
+// Reply to ChromeUtilityMsg_DetectSeccompSupport to report the level
+// of kernel support for seccomp-bpf.
+IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_DetectSeccompSupport_ResultPrctl,
+                     bool /* seccomp prctl supported */)
+IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_DetectSeccompSupport_ResultSyscall,
+                     bool /* seccomp syscall supported */)
+#endif