Revert 149692 - Create a LinuxSandbox class.

sandbox/linux/suid/client/setuid_sandbox_client.cc

Index: sandbox/linux/suid/client/setuid_sandbox_client.cc
===================================================================
--- sandbox/linux/suid/client/setuid_sandbox_client.cc	(revision 149703)
+++ sandbox/linux/suid/client/setuid_sandbox_client.cc	(working copy)
@@ -103,9 +103,8 @@
   return sandbox_client;
 }
 
-SetuidSandboxClient::SetuidSandboxClient()
-    : env_(NULL),
-      sandboxed_(false) {
+SetuidSandboxClient::SetuidSandboxClient() {
+  env_ = NULL;
 }
 
 SetuidSandboxClient::~SetuidSandboxClient() {
@@ -143,10 +142,6 @@
     LOG(ERROR) << "Error code reply from chroot helper";
     return false;
   }
-
-  // We now consider ourselves "fully sandboxed" as far as the
-  // setuid sandbox is concerned.
-  sandboxed_ = true;
   return true;
 }
 
@@ -166,10 +161,6 @@
   return env_->HasVar(kSandboxNETNSEnvironmentVarName);
 }
 
-bool SetuidSandboxClient::IsSandboxed() const {
-  return sandboxed_;
-}
-
 void SetuidSandboxClient::SetupLaunchEnvironment() {
   SaveSUIDUnsafeEnvironmentVariables(env_);
   SetSandboxAPIEnvironmentVariable(env_);