Revert of Remove deprecated methods from Pickle.

components/sessions/base_session_service_commands.cc

Index: components/sessions/base_session_service_commands.cc
diff --git a/components/sessions/base_session_service_commands.cc b/components/sessions/base_session_service_commands.cc
index 09eab437287d28a19b8cf0f238ceb5aaf5bc2af9..c0ae0a3d0707e340713742d40b5ce4faf5a93faf 100644
--- a/components/sessions/base_session_service_commands.cc
+++ b/components/sessions/base_session_service_commands.cc
@@ -109,7 +109,8 @@
   if (!pickle.get())
     return false;
   PickleIterator iterator(*pickle);
-  return iterator.ReadInt(tab_id) && navigation->ReadFromPickle(&iterator);
+  return pickle->ReadInt(&iterator, tab_id) &&
+         navigation->ReadFromPickle(&iterator);
 }
 
 bool RestoreSetTabExtensionAppIDCommand(const SessionCommand& command,
@@ -120,7 +121,8 @@
     return false;
 
   PickleIterator iterator(*pickle);
-  return iterator.ReadInt(tab_id) && iterator.ReadString(extension_app_id);
+  return pickle->ReadInt(&iterator, tab_id) &&
+      pickle->ReadString(&iterator, extension_app_id);
 }
 
 bool RestoreSetTabUserAgentOverrideCommand(const SessionCommand& command,
@@ -131,7 +133,8 @@
     return false;
 
   PickleIterator iterator(*pickle);
-  return iterator.ReadInt(tab_id) && iterator.ReadString(user_agent_override);
+  return pickle->ReadInt(&iterator, tab_id) &&
+      pickle->ReadString(&iterator, user_agent_override);
 }
 
 bool RestoreSetWindowAppNameCommand(const SessionCommand& command,
@@ -142,7 +145,8 @@
     return false;
 
   PickleIterator iterator(*pickle);
-  return iterator.ReadInt(window_id) && iterator.ReadString(app_name);
+  return pickle->ReadInt(&iterator, window_id) &&
+      pickle->ReadString(&iterator, app_name);
 }
 
 }  // namespace sessions