Resource tracking done right.

src/shared/ppapi_proxy/ppb_core.srpc

 # Copyright (c) 2010 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file declares the RPC methods used to implement PPB_Core calls from
 # the plugin.  The functions are described in ppapi/c/ppb_core.h.
 {
  'name': 'PpbCoreRpc',
  'rpcs': [
           # Implements calls to increment the reference count on a resource.
           {'name': 'PPB_Core_AddRefResource',
            'inputs': [['resource', 'int64_t'],
                      ],
            'outputs': []
           },
           # Implements calls to decrement the reference count on a resource.
           {'name': 'PPB_Core_ReleaseResource',
            'inputs': [['resource', 'int64_t'],
                      ],
            'outputs': []
           },
+          # Implements calls to decrement more than one reference count on a
+          # resource. This does not exist in PPB_Core, we implement it as an
+          # optimization.
+          {'name': 'ReleaseResourceMultipleTimes',
+           'inputs': [['resource', 'int64_t'],
+                      ['count', 'int32_t']
+                     ],
+           'outputs': []
+          },
           # MemAlloc and MemFree do not require RPCs to the browser.
           # Implements calls to get the time.
           {'name': 'PPB_Core_GetTime',
            'inputs': [],
            'outputs': [['time', 'double'],
                       ]
           },
           # CallOnMainThread is done on a different channel.
          ]
 }