fix some obsolete code.google.com sandbox links

sandbox/linux/suid/sandbox.c

Index: sandbox/linux/suid/sandbox.c
diff --git a/sandbox/linux/suid/sandbox.c b/sandbox/linux/suid/sandbox.c
index 187df94aa124d3ddb56c6f6baa6e4567092ceadb..d1bc87df646ad10fcdfdb42da0fe6f41d97e3f9c 100644
--- a/sandbox/linux/suid/sandbox.c
+++ b/sandbox/linux/suid/sandbox.c
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// http://code.google.com/p/chromium/wiki/LinuxSUIDSandbox
+// https://chromium.googlesource.com/chromium/src/+/master/docs/linux_suid_sandbox.md
 
 #include "sandbox/linux/suid/common/sandbox.h"
 
@@ -400,7 +400,7 @@ bool CheckAndExportApiVersion() {
         "The setuid sandbox provides API version %d, "
         "but you need %d\n"
         "Please read "
-        "https://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment."
+        "https://chromium.googlesource.com/chromium/src/+/master/docs/linux_suid_sandbox_development.md."
         "\n\n",
         kSUIDSandboxApiNumber,
         api_number);