Pepper: Stop using SRPC for irt_open_resource().

components/nacl/common/nacl_messages.h

Index: components/nacl/common/nacl_messages.h
diff --git a/components/nacl/common/nacl_messages.h b/components/nacl/common/nacl_messages.h
index eeaedf9396648667643e5c302d052634a6136e5c..4a94ad99c54dfb5672d4f618f9855b407f4faa7f 100644
--- a/components/nacl/common/nacl_messages.h
+++ b/components/nacl/common/nacl_messages.h
@@ -91,12 +91,23 @@ IPC_MESSAGE_CONTROL1(NaClProcessMsg_SetKnownToValidate,
 // Used by the NaCl process to acquire trusted information about a file directly
 // from the browser, including the file's path as well as a fresh version of the
 // file handle.
+// TODO(teravest): Remove the synchronous version of this message once initial
+// nexe validation caching stops using this.
 IPC_SYNC_MESSAGE_CONTROL2_2(NaClProcessMsg_ResolveFileToken,
                             uint64, /* file_token_lo */
                             uint64, /* file_token_hi */
                             IPC::PlatformFileForTransit, /* fd */
                             base::FilePath /* Path opened to get fd */)
 
+IPC_MESSAGE_CONTROL2(NaClProcessMsg_ResolveFileTokenAsync,
+                     uint64, /* file_token_lo */
+                     uint64 /* file_token_hi */)
+IPC_MESSAGE_CONTROL4(NaClProcessMsg_ResolveFileTokenAsyncReply,
+                     uint64, /* file_token_lo */
+                     uint64, /* file_token_hi */
+                     IPC::PlatformFileForTransit, /* fd */
+                     base::FilePath /* Path opened to get fd */)
+
 // Notify the browser process that the server side of the PPAPI channel was
 // created successfully.
 IPC_MESSAGE_CONTROL4(NaClProcessHostMsg_PpapiChannelsCreated,