Print a better error message (links to doc) on SUID sandbox problems.

content/browser/zygote_host/zygote_host_impl_linux.cc

Index: content/browser/zygote_host/zygote_host_impl_linux.cc
diff --git a/content/browser/zygote_host/zygote_host_impl_linux.cc b/content/browser/zygote_host/zygote_host_impl_linux.cc
index 3629a841ec1149e2002a8259390f670387768f3b..30da9540404d76a96d507d1a05f5221daa7dac3e 100644
--- a/content/browser/zygote_host/zygote_host_impl_linux.cc
+++ b/content/browser/zygote_host/zygote_host_impl_linux.cc
@@ -127,7 +127,10 @@ void ZygoteHostImpl::Init(const std::string& sandbox_cmd) {
     struct stat st;
     if (stat(sandbox_binary_.c_str(), &st) != 0) {
       LOG(FATAL) << "The SUID sandbox helper binary is missing: "
-                 << sandbox_binary_ << " Aborting now.";
+                 << sandbox_binary_ << " Aborting now. "
+                 << "See https://code.google.com/p/chromium/wiki/LinuxSUIDSandbox "

[Lei Zhang, 2013/09/12 01:07:31]

Maybe just add a helper function instead of repeating yourself and going over 80
chars/line?

void WriteFatalMessage(const std::string& msg) {
  LOG(FATAL) << msg
             << " See ...";

+                 << "and https://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment "
+                 << "for more info.";
     }
 
     if (access(sandbox_binary_.c_str(), X_OK) == 0 &&
@@ -143,7 +146,10 @@ void ZygoteHostImpl::Init(const std::string& sandbox_cmd) {
       LOG(FATAL) << "The SUID sandbox helper binary was found, but is not "
                     "configured correctly. Rather than run without sandboxing "
                     "I'm aborting now. You need to make sure that "
-                 << sandbox_binary_ << " is owned by root and has mode 4755.";
+                 << sandbox_binary_ << " is owned by root and has mode 4755. "
+                 << "See https://code.google.com/p/chromium/wiki/LinuxSUIDSandbox "
+                 << "and https://code.google.com/p/chromium/wiki/LinuxSUIDSandboxDevelopment "
+                 << "for more info.";
     }
   }