PPAPI: Remove instance param from GetFileTaskRunner

ppapi/proxy/plugin_globals.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 PPAPI_PROXY_PLUGIN_GLOBALS_H_
 #define PPAPI_PROXY_PLUGIN_GLOBALS_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 54 matching lines @@
   virtual void PreCacheFontForFlash(const void* logfontw) OVERRIDE;
   virtual void LogWithSource(PP_Instance instance,
                              PP_LogLevel level,
                              const std::string& source,
                              const std::string& value) OVERRIDE;
   virtual void BroadcastLogWithSource(PP_Module module,
                                       PP_LogLevel level,
                                       const std::string& source,
                                       const std::string& value) OVERRIDE;
   virtual MessageLoopShared* GetCurrentMessageLoop() OVERRIDE;
-  base::TaskRunner* GetFileTaskRunner(PP_Instance instance) OVERRIDE;
+  base::TaskRunner* GetFileTaskRunner() OVERRIDE;
 
   // Returns the channel for sending to the browser.
   IPC::Sender* GetBrowserSender();
 
   // Returns the language code of the current UI language.
   std::string GetUILanguage();
 
   // Sets the active url which is reported by breakpad.
   void SetActiveURL(const std::string& url);
 
@@ skipping 74 matching lines @@
   // lazily, since it might not be needed.
   scoped_ptr<base::Thread> file_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginGlobals);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif   // PPAPI_PROXY_PLUGIN_GLOBALS_H_