Fix some WeakPtrFactory members that aren't last

content/renderer/pepper/message_channel.h

Index: content/renderer/pepper/message_channel.h
diff --git a/content/renderer/pepper/message_channel.h b/content/renderer/pepper/message_channel.h
index 9c8c28df3c4ac61f3262e13effb039c30af6d96b..f577224ff7ab0e6c35086acaefe6337b8668ecd9 100644
--- a/content/renderer/pepper/message_channel.h
+++ b/content/renderer/pepper/message_channel.h
@@ -118,10 +118,6 @@ class MessageChannel {
 
   void DrainEarlyMessageQueue();
 
-  // This is used to ensure pending tasks will not fire after this object is
-  // destroyed.
-  base::WeakPtrFactory<MessageChannel> weak_ptr_factory_;
-
   // TODO(teravest): Remove all the tricky DRAIN_CANCELLED logic once
   // PluginInstance::ResetAsProxied() is gone.
   std::deque<WebKit::WebSerializedScriptValue> early_message_queue_;
@@ -139,6 +135,10 @@ class MessageChannel {
   // the order in which messages are processed is preserved.
   std::list<VarConversionResult> converted_var_queue_;
 
+  // This is used to ensure pending tasks will not fire after this object is
+  // destroyed.
+  base::WeakPtrFactory<MessageChannel> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(MessageChannel);
 };