Linux sandbox: cleanup sandbox-bpf naming.

content/common/sandbox_bpf_base_policy_linux.h

Index: content/common/sandbox_bpf_base_policy_linux.h
diff --git a/content/common/sandbox_bpf_base_policy_linux.h b/content/common/sandbox_bpf_base_policy_linux.h
index 4ba83da7e1ad6b6c24c94162de715ad9823c8fdd..8ed76a5c1aab9f2e7a472a22fe4300471fff8fb0 100644
--- a/content/common/sandbox_bpf_base_policy_linux.h
+++ b/content/common/sandbox_bpf_base_policy_linux.h
@@ -10,8 +10,8 @@
 #include "sandbox/linux/seccomp-bpf-helpers/baseline_policy.h"
 #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h"
 
-using playground2::ErrorCode;
-using playground2::Sandbox;
+using sandbox::ErrorCode;
+using sandbox::SandboxBPF;
 
 namespace content {
 
@@ -19,12 +19,12 @@ namespace content {
 // should inherit from it.
 // It implements the main SandboxBpfPolicy interface. Due to its nature
 // as a "kernel attack surface reduction" layer, it's implementation-defined.
-class SandboxBpfBasePolicy : public playground2::SandboxBpfPolicy {
+class SandboxBpfBasePolicy : public sandbox::SandboxBpfPolicy {
  public:
   SandboxBpfBasePolicy();
   virtual ~SandboxBpfBasePolicy();
 
-  virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+  virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
                                     int system_call_number) const OVERRIDE;
   // Get the errno(3) to return for filesystem errors.
   static int GetFSDeniedErrno();