update obsolete code.google.com documentation links

content/renderer/renderer_main_platform_delegate_linux.cc

Index: content/renderer/renderer_main_platform_delegate_linux.cc
diff --git a/content/renderer/renderer_main_platform_delegate_linux.cc b/content/renderer/renderer_main_platform_delegate_linux.cc
index 4a632b3d51c01e7e1f954655691fbf106069c2e1..5743abd8a4f0b49cb566f456d36d0268a120028b 100644
--- a/content/renderer/renderer_main_platform_delegate_linux.cc
+++ b/content/renderer/renderer_main_platform_delegate_linux.cc
@@ -30,7 +30,7 @@ void RendererMainPlatformDelegate::PlatformUninitialize() {
 
 bool RendererMainPlatformDelegate::EnableSandbox() {
   // The setuid sandbox is started in the zygote process: zygote_main_linux.cc
-  // http://code.google.com/p/chromium/wiki/LinuxSUIDSandbox
+  // https://chromium.googlesource.com/chromium/src/+/master/docs/linux_suid_sandbox.md
   //
   // Anything else is started in InitializeSandbox().
   LinuxSandbox::InitializeSandbox();