Implement GetSandboxType() on all platforms and implement for all process types.

content/browser/utility_process_host_impl.cc

Index: content/browser/utility_process_host_impl.cc
diff --git a/content/browser/utility_process_host_impl.cc b/content/browser/utility_process_host_impl.cc
index 8b87f75a6e2ff149a1fd987a58fd9b5b873d0f82..67f08a23210b3851a1ab993eb77b23864507a049 100644
--- a/content/browser/utility_process_host_impl.cc
+++ b/content/browser/utility_process_host_impl.cc
@@ -27,6 +27,7 @@
 #include "content/public/browser/utility_process_host_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/process_type.h"
+#include "content/public/common/sandbox_type.h"
 #include "content/public/common/sandboxed_process_launcher_delegate.h"
 #include "ipc/ipc_switches.h"
 #include "ui/base/ui_base_switches.h"
@@ -69,6 +70,10 @@ class UtilitySandboxedProcessLauncherDelegate
   base::ScopedFD TakeIpcFd() override { return ipc_fd_.Pass(); }
 #endif  // OS_WIN
 
+  SandboxType GetSandboxType() override {
+    return SANDBOX_TYPE_UTILITY;
+  }
+
  private:
   base::FilePath exposed_dir_;