PPAPI: Remove instance param from GetFileTaskRunner

ppapi/proxy/plugin_globals.cc

 // 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.
 
 #include "ppapi/proxy/plugin_globals.h"
 
 #include "base/task_runner.h"
 #include "base/threading/thread.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sender.h"
@@ skipping 132 matching lines @@
   // Since we have only one module in a plugin process, broadcast is always
   // the same as "send to everybody" which is what the dispatcher implements
   // for the "instance = 0" case.
   LogWithSource(0, level, source, value);
 }
 
 MessageLoopShared* PluginGlobals::GetCurrentMessageLoop() {
   return MessageLoopResource::GetCurrent();
 }
 
-base::TaskRunner* PluginGlobals::GetFileTaskRunner(PP_Instance instance) {
+base::TaskRunner* PluginGlobals::GetFileTaskRunner() {
   if (!file_thread_.get()) {
     file_thread_.reset(new base::Thread("Plugin::File"));
     base::Thread::Options options;
     options.message_loop_type = base::MessageLoop::TYPE_IO;
     file_thread_->StartWithOptions(options);
   }
   return file_thread_->message_loop_proxy();
 }
 
 IPC::Sender* PluginGlobals::GetBrowserSender() {
@@ skipping 25 matching lines @@
 MessageLoopResource* PluginGlobals::loop_for_main_thread() {
   return loop_for_main_thread_.get();
 }
 
 bool PluginGlobals::IsPluginGlobals() const {
   return true;
 }
 
 }  // namespace proxy
 }  // namespace ppapi