Revert 227566 "Fix some WeakPtrFactory members that aren't last"

content/renderer/pepper/message_channel.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_PEPPER_MESSAGE_CHANNEL_H_
 #define CONTENT_RENDERER_PEPPER_MESSAGE_CHANNEL_H_
 
 #include <deque>
 #include <list>
 
@@ skipping 100 matching lines @@
   // Post a message to the onmessage handler for this channel's instance
   // synchronously.  This is used by PostMessageToJavaScript.
   void PostMessageToJavaScriptImpl(
       const WebKit::WebSerializedScriptValue& message_data);
   // Post a message to the PPP_Instance HandleMessage function for this
   // channel's instance.  This is used by PostMessageToNative.
   void PostMessageToNativeImpl(PP_Var message_data);
 
   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_;
   enum EarlyMessageQueueState {
     QUEUE_MESSAGES,       // Queue JS messages.
     SEND_DIRECTLY,        // Post JS messages directly.
     DRAIN_PENDING,        // Drain queue, then transition to DIRECT.
     DRAIN_CANCELLED       // Preempt drain, go back to QUEUE.
   };
   EarlyMessageQueueState early_message_queue_state_;
 
   // This queue stores vars that have been converted from NPVariants. Because
   // conversion can happen asynchronously, the queue stores the var until all
   // previous vars have been converted before calling PostMessage to ensure that
   // 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);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_MESSAGE_CHANNEL_H_