Linux sandbox: cleanup sandbox-bpf naming.

sandbox/linux/seccomp-bpf/verifier.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__
 #define SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__
 
 #include <linux/filter.h>
 
 #include <utility>
 #include <vector>
 
-namespace playground2 {
+namespace sandbox {
 
-class SandboxBpfPolicy;
+class SandboxBPFPolicy;
 
 class Verifier {
  public:
   // Evaluate the BPF program for all possible inputs and verify that it
   // computes the correct result. We use the "evaluators" to determine
   // the full set of possible inputs that we have to iterate over.
   // Returns success, if the BPF filter accurately reflects the rules
   // set by the "evaluators".
   // Upon success, "err" is set to NULL. Upon failure, it contains a static
   // error message that does not need to be free()'d.
-  static bool VerifyBPF(Sandbox* sandbox,
+  static bool VerifyBPF(SandboxBPF* sandbox,
                         const std::vector<struct sock_filter>& program,
-                        const SandboxBpfPolicy& policy,
+                        const SandboxBPFPolicy& policy,
                         const char** err);
 
   // Evaluate a given BPF program for a particular set of system call
   // parameters. If evaluation failed for any reason, "err" will be set to
   // a non-NULL error string. Otherwise, the BPF program's result will be
   // returned by the function and "err" is NULL.
   // We do not actually implement the full BPF state machine, but only the
   // parts that can actually be generated by our BPF compiler. If this code
   // is used for purposes other than verifying the output of the sandbox's
   // BPF compiler, we might have to extend this BPF interpreter.
   static uint32_t EvaluateBPF(const std::vector<struct sock_filter>& program,
                               const struct arch_seccomp_data& data,
                               const char** err);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(Verifier);
 };
 
-}  // namespace
+}  // namespace sandbox
 
 #endif  // SANDBOX_LINUX_SECCOMP_BPF_VERIFIER_H__