Revert of Remove deprecated methods from Pickle.

content/child/resource_dispatcher.cc

Index: content/child/resource_dispatcher.cc
diff --git a/content/child/resource_dispatcher.cc b/content/child/resource_dispatcher.cc
index 7cbc7fa53e3249f3e79802d1b407a3cf02f3a70e..e5fb19a5f89bec2f13e4f7fbaf9cf4dc38770653 100644
--- a/content/child/resource_dispatcher.cc
+++ b/content/child/resource_dispatcher.cc
@@ -311,7 +311,7 @@
   int request_id;
 
   PickleIterator iter(message);
-  if (!iter.ReadInt(&request_id)) {
+  if (!message.ReadInt(&iter, &request_id)) {
     NOTREACHED() << "malformed resource message";
     return true;
   }
@@ -874,7 +874,7 @@
     const IPC::Message& message) {
   PickleIterator iter(message);
   int request_id;
-  if (!iter.ReadInt(&request_id)) {
+  if (!message.ReadInt(&iter, &request_id)) {
     NOTREACHED() << "malformed resource message";
     return;
   }