Revert of Start all children in their own PID namespace.

sandbox/linux/services/credentials_unittest.cc

Index: sandbox/linux/services/credentials_unittest.cc
diff --git a/sandbox/linux/services/credentials_unittest.cc b/sandbox/linux/services/credentials_unittest.cc
index 6b93c86c3ecbc2104282b50da80e32f3d9ad06d3..db19f6fee561073c1dc7a0f0ba7dfc29b91abd65 100644
--- a/sandbox/linux/services/credentials_unittest.cc
+++ b/sandbox/linux/services/credentials_unittest.cc
@@ -177,17 +177,16 @@
 
   base::ScopedFD proc_fd(ProcUtil::OpenProc());
 
-  CHECK(Credentials::HasCapability(Credentials::Capability::SYS_ADMIN));
-  CHECK(Credentials::HasCapability(Credentials::Capability::SYS_CHROOT));
-
-  std::vector<Credentials::Capability> caps;
-  caps.push_back(Credentials::Capability::SYS_CHROOT);
+  CHECK(Credentials::HasCapability(LinuxCapability::kCapSysAdmin));
+  CHECK(Credentials::HasCapability(LinuxCapability::kCapSysChroot));
+
+  const std::vector<LinuxCapability> caps = {LinuxCapability::kCapSysChroot};
   CHECK(Credentials::SetCapabilities(proc_fd.get(), caps));
 
-  CHECK(!Credentials::HasCapability(Credentials::Capability::SYS_ADMIN));
-  CHECK(Credentials::HasCapability(Credentials::Capability::SYS_CHROOT));
-
-  const std::vector<Credentials::Capability> no_caps;
+  CHECK(!Credentials::HasCapability(LinuxCapability::kCapSysAdmin));
+  CHECK(Credentials::HasCapability(LinuxCapability::kCapSysChroot));
+
+  const std::vector<LinuxCapability> no_caps;
   CHECK(Credentials::SetCapabilities(proc_fd.get(), no_caps));
   CHECK(!Credentials::HasAnyCapability());
 }
@@ -199,11 +198,10 @@
 
   base::ScopedFD proc_fd(ProcUtil::OpenProc());
 
-  CHECK(Credentials::HasCapability(Credentials::Capability::SYS_CHROOT));
+  CHECK(Credentials::HasCapability(LinuxCapability::kCapSysChroot));
   PCHECK(chroot("/") == 0);
 
-  std::vector<Credentials::Capability> caps;
-  caps.push_back(Credentials::Capability::SYS_CHROOT);
+  const std::vector<LinuxCapability> caps = {LinuxCapability::kCapSysChroot};
   CHECK(Credentials::SetCapabilities(proc_fd.get(), caps));
   PCHECK(chroot("/") == 0);
 
@@ -218,8 +216,7 @@
 
   base::ScopedFD proc_fd(ProcUtil::OpenProc());
 
-  std::vector<Credentials::Capability> caps;
-  caps.push_back(Credentials::Capability::SYS_CHROOT);
+  const std::vector<LinuxCapability> caps = {LinuxCapability::kCapSysChroot};
   CHECK(Credentials::SetCapabilities(proc_fd.get(), caps));
 
   ScopedCap actual_cap(cap_get_proc());