fix some obsolete code.google.com sandbox links

sandbox/linux/suid/client/setuid_sandbox_host.cc

Index: sandbox/linux/suid/client/setuid_sandbox_host.cc
diff --git a/sandbox/linux/suid/client/setuid_sandbox_host.cc b/sandbox/linux/suid/client/setuid_sandbox_host.cc
index 71171ebd4fe32b415743bf7c8a54524367c666fe..8e8a2afd9775c3dbb6c9103681077d2d67c48823 100644
--- a/sandbox/linux/suid/client/setuid_sandbox_host.cc
+++ b/sandbox/linux/suid/client/setuid_sandbox_host.cc
@@ -130,7 +130,7 @@ base::FilePath SetuidSandboxHost::GetSandboxBinaryPath() {
 
   // In user-managed builds, including development builds, an environment
   // variable is required to enable the sandbox. See
-  // http://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment
+  // https://chromium.googlesource.com/chromium/src/+/master/docs/linux_suid_sandbox_development.md
   struct stat st;
   if (sandbox_binary.empty() && stat(base::kProcSelfExe, &st) == 0 &&
       st.st_uid == getuid()) {
@@ -149,8 +149,9 @@ void SetuidSandboxHost::PrependWrapper(base::CommandLine* cmd_line) {
   if (sandbox_binary.empty() || stat(sandbox_binary.c_str(), &st) != 0) {
     LOG(FATAL) << "The SUID sandbox helper binary is missing: "
                << sandbox_binary << " Aborting now. See "
-                                    "https://code.google.com/p/chromium/wiki/"
-                                    "LinuxSUIDSandboxDevelopment.";
+                                    "https://chromium.googlesource.com/"
+                                    "chromium/src/+/master/docs/"
+                                    "linux_suid_sandbox_development.md.";
   }
 
   if (access(sandbox_binary.c_str(), X_OK) != 0 || (st.st_uid != 0) ||