Refactor Pickle Read methods to use higher performance PickleIterator.

chrome/browser/password_manager/native_backend_kwallet_x.h

Index: chrome/browser/password_manager/native_backend_kwallet_x.h
diff --git a/chrome/browser/password_manager/native_backend_kwallet_x.h b/chrome/browser/password_manager/native_backend_kwallet_x.h
index 23d259b331f2ccbbea6b911fde393649ca63c405..63cbeae9a5f4010c2022795adef84a5138994c07 100644
--- a/chrome/browser/password_manager/native_backend_kwallet_x.h
+++ b/chrome/browser/password_manager/native_backend_kwallet_x.h
@@ -129,7 +129,7 @@ class NativeBackendKWallet : public PasswordStoreX::NativeBackend {
 
   // Convenience function to read a GURL from a Pickle. Assumes the URL has
   // been written as a std::string. Returns true on success.
-  static bool ReadGURL(const Pickle& pickle, void** iter, GURL* url);
+  static bool ReadGURL(const Pickle& pickle, PickleReader* iter, GURL* url);
 
   // In case the fields in the pickle ever change, version them so we can try to
   // read old pickles. (Note: do not eat old pickles past the expiration date.)