Revert 203489 "Replace JSON (de)serialization of extension messa..."

trunk/src/chrome/browser/extensions/api/messaging/native_message_process_host.h

Index: trunk/src/chrome/browser/extensions/api/messaging/native_message_process_host.h
===================================================================
--- trunk/src/chrome/browser/extensions/api/messaging/native_message_process_host.h	(revision 203729)
+++ trunk/src/chrome/browser/extensions/api/messaging/native_message_process_host.h	(working copy)
@@ -15,15 +15,13 @@
 #include "chrome/browser/extensions/api/messaging/native_process_launcher.h"
 #include "content/public/browser/browser_thread.h"
 
-namespace base {
-class ListValue;
-}
-
 namespace net {
+
 class DrainableIOBuffer;
 class FileStream;
 class IOBuffer;
 class IOBufferWithSize;
+
 }  // namespace net
 
 namespace extensions {
@@ -45,9 +43,8 @@
    public:
     virtual ~Client() {}
     // Called on the UI thread.
-    virtual void PostMessageFromNativeProcess(
-        int port_id,
-        scoped_ptr<base::ListValue> message) = 0;
+    virtual void PostMessageFromNativeProcess(int port_id,
+                                              const std::string& message) = 0;
     virtual void CloseChannel(int port_id,
                               const std::string& error_message) = 0;
   };