Pepper: Make pending_sync_msgs_ local to IO thread.

components/nacl/loader/nacl_ipc_adapter.h

 // Copyright 2013 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 CHROME_NACL_NACL_IPC_ADAPTER_H_
 #define CHROME_NACL_NACL_IPC_ADAPTER_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 130 matching lines @@
     bool channel_closed_;
   };
 
   // This is the data that must only be accessed on the I/O thread (as defined
   // by TaskRunner). This struct just separates it so it's easier to see.
   struct IOThreadData {
     IOThreadData();
     ~IOThreadData();
 
     scoped_ptr<IPC::Channel> channel_;
+
+    // When we send a synchronous message (from untrusted to trusted), we store
+    // its type here, so that later we can associate the reply with its type
+    // for scanning.
+    typedef std::map<int, uint32> PendingSyncMsgMap;
+    PendingSyncMsgMap pending_sync_msgs_;
   };
 
   virtual ~NaClIPCAdapter();
 
   // Returns 0 if nothing is waiting.
   int LockedReceive(NaClImcTypedMsgHdr* msg);
 
   // Sends a message that we know has been completed to the Chrome process.
   bool SendCompleteMessage(const char* buffer, size_t buffer_len);
 
@@ skipping 22 matching lines @@
   // To be accessed on the I/O thread (via task runner) only.
   IOThreadData io_thread_data_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClIPCAdapter);
 };
 
 // Export TranslatePepperFileReadWriteOpenFlags for testing.
 int TranslatePepperFileReadWriteOpenFlagsForTesting(int32_t pp_open_flags);
 
 #endif  // CHROME_NACL_NACL_IPC_ADAPTER_H_