Linux sandbox: cleanup sandbox-bpf naming.

components/nacl/loader/nacl_sandbox_linux.cc

Index: components/nacl/loader/nacl_sandbox_linux.cc
diff --git a/components/nacl/loader/nacl_sandbox_linux.cc b/components/nacl/loader/nacl_sandbox_linux.cc
index f92cc080fb8d1b4eabe50ebf31f04310705b1ccb..bb1eb13e3d48ae8d793c6e03e8ea3feea5042bc0 100644
--- a/components/nacl/loader/nacl_sandbox_linux.cc
+++ b/components/nacl/loader/nacl_sandbox_linux.cc
@@ -18,9 +18,9 @@
 #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h"
 #include "sandbox/linux/services/linux_syscalls.h"
 
-using playground2::ErrorCode;
-using playground2::Sandbox;
-using playground2::SandboxBpfPolicy;
+using sandbox::ErrorCode;
+using sandbox::SandboxBPF;
+using sandbox::SandboxBpfPolicy;
 
 namespace {
 
@@ -58,7 +58,7 @@ class NaClBpfSandboxPolicy : public SandboxBpfPolicy {
       : baseline_policy_(content::GetBpfSandboxBaselinePolicy()) {}
   virtual ~NaClBpfSandboxPolicy() {}
 
-  virtual ErrorCode EvaluateSyscall(Sandbox* sandbox_compiler,
+  virtual ErrorCode EvaluateSyscall(SandboxBPF* sandbox_compiler,
                                     int system_call_number) const OVERRIDE;
 
  private:
@@ -67,7 +67,7 @@ class NaClBpfSandboxPolicy : public SandboxBpfPolicy {
 };
 
 ErrorCode NaClBpfSandboxPolicy::EvaluateSyscall(
-    playground2::Sandbox* sb, int sysno) const {
+    sandbox::SandboxBPF* sb, int sysno) const {
   DCHECK(baseline_policy_);
   switch (sysno) {
     // TODO(jln): NaCl's GDB debug stub uses the following socket system calls,