Update policy backend and testserver for the newest policy protocol

chrome/browser/policy/cloud_policy_cache.h

Index: chrome/browser/policy/cloud_policy_cache.h
diff --git a/chrome/browser/policy/cloud_policy_cache.h b/chrome/browser/policy/cloud_policy_cache.h
index 03c2369af215c6c6db547ee15bddc482cd08b298..e098444f017888cf52f36c57f7438159f7f2f4ba 100644
--- a/chrome/browser/policy/cloud_policy_cache.h
+++ b/chrome/browser/policy/cloud_policy_cache.h
@@ -54,7 +54,7 @@ class CloudPolicyCache : public base::NonThreadSafe {
   // Resets the policy information. Returns true if the new policy is different
   // from the previously stored policy.
   // Marked virtual so it can be overridden by mocks.
-  virtual bool SetPolicy(const em::CloudPolicyResponse& policy);
+  virtual bool SetPolicy(const em::PolicyFetchResponse& policy);
   virtual bool SetDevicePolicy(const em::DevicePolicyResponse& policy);
 
   ConfigurationPolicyProvider* GetManagedPolicyProvider();
@@ -87,7 +87,7 @@ class CloudPolicyCache : public base::NonThreadSafe {
   // maps and a timestamp. Also performs verification, returns NULL if any
   // check fails.
   static bool DecodePolicyResponse(
-      const em::CloudPolicyResponse& policy_response,
+      const em::PolicyFetchResponse& policy_response,
       PolicyMap* mandatory,
       PolicyMap* recommended,
       base::Time* timestamp);