Call SetApplicationIsDaemon() in V2 sandbox.

content/common/sandbox_init_mac.cc

Index: content/common/sandbox_init_mac.cc
diff --git a/content/common/sandbox_init_mac.cc b/content/common/sandbox_init_mac.cc
index f73e85db4d109045820688b28b0924360a07169b..22a4e84a0c190472515aa11107cc8b73df27230d 100644
--- a/content/common/sandbox_init_mac.cc
+++ b/content/common/sandbox_init_mac.cc
@@ -72,6 +72,22 @@ bool GetSandboxTypeFromCommandLine(int* sandbox_type,
   return true;
 }
 
+void ExplicitlyWarmupSandbox() {
+  int sandbox_type = 0;
+  base::FilePath allowed_dir;
+  if (!GetSandboxTypeFromCommandLine(&sandbox_type, &allowed_dir))
+    return;
+  Sandbox::SandboxWarmup(sandbox_type);
+}
+
+bool ExplicitlyEnableSandbox() {
+  int sandbox_type = 0;
+  base::FilePath allowed_dir;
+  if (!GetSandboxTypeFromCommandLine(&sandbox_type, &allowed_dir))
+    return true;
+  return Sandbox::EnableSandbox(sandbox_type, allowed_dir);
+}
+
 bool InitializeSandbox() {
   int sandbox_type = 0;
   base::FilePath allowed_dir;