Add the protobufs for the set of session timeout policies planned for the kiosk mode.

chrome/browser/chromeos/device_settings_provider.h

Index: chrome/browser/chromeos/device_settings_provider.h
diff --git a/chrome/browser/chromeos/device_settings_provider.h b/chrome/browser/chromeos/device_settings_provider.h
index 904b2b7d724bb6d0255f8db0ca26109122d660a0..4794b5380f082e3b0b24003da6cd21827991e9d2 100644
--- a/chrome/browser/chromeos/device_settings_provider.h
+++ b/chrome/browser/chromeos/device_settings_provider.h
@@ -15,6 +15,7 @@
 #include "chrome/browser/chromeos/cros_settings_provider.h"
 #include "chrome/browser/chromeos/login/ownership_service.h"
 #include "chrome/browser/chromeos/signed_settings_migration_helper.h"
+#include "chrome/browser/policy/proto/chrome_device_policy.pb.h"
 #include "chrome/browser/policy/proto/device_management_backend.pb.h"
 #include "chrome/browser/prefs/pref_value_map.h"
 #include "content/public/browser/notification_registrar.h"
@@ -66,6 +67,23 @@ class DeviceSettingsProvider : public CrosSettingsProvider,
       SignedSettings::ReturnCode code,
       const enterprise_management::PolicyFetchResponse& policy);
 
+  // Decode the various groups of policies.
+  void DecodeLoginPolicies(
+      const enterprise_management::ChromeDeviceSettingsProto& policy,
+      PrefValueMap* new_values_cache) const;
+  void DecodeKioskPolicies(
+      const enterprise_management::ChromeDeviceSettingsProto& policy,
+      PrefValueMap* new_values_cache) const;
+  void DecodeNetworkPolicies(
+      const enterprise_management::ChromeDeviceSettingsProto& policy,
+      PrefValueMap* new_values_cache) const;
+  void DecodeReportingPolicies(
+      const enterprise_management::ChromeDeviceSettingsProto& policy,
+      PrefValueMap* new_values_cache) const;
+  void DecodeGenericPolicies(
+      const enterprise_management::ChromeDeviceSettingsProto& policy,
+      PrefValueMap* new_values_cache) const;
+
   // Parses the policy cache and fills the cache of base::Value objects.
   void UpdateValuesCache();