Small clean up in PlatformKeysService.

chrome/browser/chromeos/platform_keys/platform_keys_service.h

Index: chrome/browser/chromeos/platform_keys/platform_keys_service.h
diff --git a/chrome/browser/chromeos/platform_keys/platform_keys_service.h b/chrome/browser/chromeos/platform_keys/platform_keys_service.h
index f903d4d3b45ab0e13e9cc845c3fbe27086105f00..79342d79923b738c938e70cfebee5ca880e63580 100644
--- a/chrome/browser/chromeos/platform_keys/platform_keys_service.h
+++ b/chrome/browser/chromeos/platform_keys/platform_keys_service.h
@@ -85,8 +85,8 @@ class PlatformKeysService : public KeyedService {
             const SignCallback& callback);
 
  private:
-  typedef base::Callback<void(scoped_ptr<base::ListValue> platform_keys)>
-      GetPlatformKeysCallback;
+  using GetPlatformKeysCallback =
+      base::Callback<void(scoped_ptr<base::ListValue> platform_keys)>;
 
   // Registers the given public key as newly generated key, which is allowed to
   // be used for signing for a single time. Afterwards, calls |callback|. If
@@ -94,7 +94,7 @@ class PlatformKeysService : public KeyedService {
   // callback.
   void RegisterPublicKey(const std::string& extension_id,
                          const std::string& public_key_spki_der,
-                         const base::Callback<void(bool)>& callback);
+                         const base::Closure& callback);
 
   // Gets the current validity of the given public key by reading StateStore.
   // Invalidates the key if it was found to be valid. Finally, calls |callback|
@@ -109,6 +109,11 @@ class PlatformKeysService : public KeyedService {
   void GetPlatformKeysOfExtension(const std::string& extension_id,
                                   const GetPlatformKeysCallback& callback);
 
+  // Writes |platform_keys| to the state store of the extension with id
+  // |extension_id|.
+  void SetPlatformKeysOfExtension(const std::string& extension_id,
+                                  scoped_ptr<base::ListValue> platform_keys);
+
   // Callback used by |GenerateRSAKey|.
   // If the key generation was successful, registers the generated public key
   // for the given extension. If any error occurs during key generation or
@@ -125,7 +130,7 @@ class PlatformKeysService : public KeyedService {
   void RegisterPublicKeyGotPlatformKeys(
       const std::string& extension_id,
       const std::string& public_key_spki_der,
-      const base::Callback<void(bool)>& callback,
+      const base::Closure& callback,
       scoped_ptr<base::ListValue> platform_keys);
 
   // Callback used by |ReadValidityAndInvalidateKey|.