Revert 149692 - Create a LinuxSandbox class.

sandbox/linux/suid/client/setuid_sandbox_client.h

Index: sandbox/linux/suid/client/setuid_sandbox_client.h
===================================================================
--- sandbox/linux/suid/client/setuid_sandbox_client.h	(revision 149703)
+++ sandbox/linux/suid/client/setuid_sandbox_client.h	(working copy)
@@ -6,9 +6,8 @@
 #define SANDBOX_LINUX_SUID_SETUID_SANDBOX_CLIENT_H_
 
 #include "base/basictypes.h"
+#include "base/environment.h"
 
-namespace base { class Environment; }
-
 namespace sandbox {
 
 // Helper class to use the setuid sandbox. This class is to be used both
@@ -39,8 +38,6 @@
   bool IsInNewPIDNamespace() const;
   // Did the setuid helper create a new network namespace ?
   bool IsInNewNETNamespace() const;
-  // Are we done and fully sandboxed ?
-  bool IsSandboxed() const;
 
   // Set-up the environment. This should be done prior to launching the setuid
   // helper.
@@ -49,7 +46,6 @@
  private:
   // Holds the environment. Will never be NULL.
   base::Environment* env_;
-  bool sandboxed_;
   DISALLOW_IMPLICIT_CONSTRUCTORS(SetuidSandboxClient);
 };