Rename NaCl/pepper gamepad interface from _dev to stable

ppapi/native_client/src/shared/ppapi_proxy/ppb_rpc_client.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.
 //
 // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
 //
 // Automatically generated code.  See srpcgen.py
 //
 // NaCl Simple Remote Procedure Call interface abstractions.
 
@@ skipping 1178 matching lines @@
   retval = NaClSrpcInvokeBySignature(
       channel,
       "PPB_Fullscreen_GetScreenSize:i:Ci",
       instance,
       size_bytes, size,
       success
   );
   return retval;
 }
 
-NaClSrpcError PpbGamepadRpcClient::PPB_Gamepad_SampleGamepads(
+NaClSrpcError PpbGamepadRpcClient::PPB_Gamepad_Sample(
     NaClSrpcChannel* channel,
     PP_Instance instance,
     nacl_abi_size_t* data_bytes, char* data)  {
   VCHECK(ppapi_proxy::PPBCoreInterface()->IsMainThread(),
          ("%s: PPAPI calls are not supported off the main thread\n",
           __FUNCTION__));
   NaClSrpcError retval;
   retval = NaClSrpcInvokeBySignature(
       channel,
-      "PPB_Gamepad_SampleGamepads:i:C",
+      "PPB_Gamepad_Sample:i:C",
       instance,
       data_bytes, data
   );
   return retval;
 }
 
 NaClSrpcError PpbGraphics2DRpcClient::PPB_Graphics2D_Create(
     NaClSrpcChannel* channel,
     PP_Instance instance,
     nacl_abi_size_t size_bytes, char* size,
@@ skipping 2544 matching lines @@
       channel,
       "PPB_Zoom_ZoomLimitsChanged:idd:",
       instance,
       minimum_factor,
       maximum_factor
   );
   return retval;
 }