policy: use JSON schema to deserialize entries from Windows registry.

chrome/browser/policy/policy_loader_win.h

Index: chrome/browser/policy/policy_loader_win.h
diff --git a/chrome/browser/policy/policy_loader_win.h b/chrome/browser/policy/policy_loader_win.h
index 3b6f13a5e2c99ebbd0a7bcb95974bc8df1b68455..f662cf20e598fd58fb750515647e759a43f40ed4 100644
--- a/chrome/browser/policy/policy_loader_win.h
+++ b/chrome/browser/policy/policy_loader_win.h
@@ -17,6 +17,7 @@
 #include "base/win/object_watcher.h"
 #include "chrome/browser/policy/async_policy_loader.h"
 #include "chrome/browser/policy/policy_types.h"
+#include "components/policy/core/common/policy_schema.h"
 
 namespace base {
 class SequencedTaskRunner;
@@ -66,9 +67,6 @@ class PolicyLoaderWin : public AsyncPolicyLoader,
   virtual scoped_ptr<PolicyBundle> Load() OVERRIDE;
 
  private:
-  // Builds the Chrome policy schema in |chrome_policy_schema_|.
-  void BuildChromePolicySchema();
-
   // Reads Chrome Policy from a PReg file at the given path and stores the
   // result in |policy|.
   bool ReadPRegFile(const base::FilePath& preg_file,
@@ -98,6 +96,12 @@ class PolicyLoaderWin : public AsyncPolicyLoader,
                         PolicyScope scope,
                         PolicyMap* chrome_policy_map);
 
+  // Loads 3rd-party policy schema.
+  const PolicySchema* Load3rdPartyPolicySchema(
+      PolicyDomain domain,
+      const std::string& component_key,
+      RegistryDict* component_dict);
+
   // Loads 3rd-party policy from |gpo_dict| and merges it into |bundle|.
   void Load3rdPartyPolicy(const RegistryDict* gpo_dict,
                           PolicyScope scope,
@@ -113,7 +117,6 @@ class PolicyLoaderWin : public AsyncPolicyLoader,
   const PolicyDefinitionList* policy_list_;
   const string16 chrome_policy_key_;
   class AppliedGPOListProvider* gpo_provider_;
-  base::DictionaryValue chrome_policy_schema_;
 
   base::WaitableEvent user_policy_changed_event_;
   base::WaitableEvent machine_policy_changed_event_;