Proxy PPB_ArrayBuffer_Dev, make them work over Messaging

ppapi/native_client/src/shared/ppapi_proxy/proxy_var_cache.h

 // Copyright (c) 2011 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 NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PROXY_VAR_CACHE_H_
 #define NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PROXY_VAR_CACHE_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 36 matching lines @@
   void ReleaseProxyVar(const PP_Var& var);
 
   // Find the object in the cache associated with |pp_var|.
   SharedProxyVar SharedProxyVarForVar(PP_Var pp_var) const;
 
   // Return all live Vars in the tracker. Reference counts are incremented.
   std::vector<PP_Var> GetLiveVars();
 
  private:
   // Return whether or not a var type is cached.
-  // Note to implementers: be sure to add to this function when adding new
-  // cached types.
-  // TODO(dspringer): When all the complex var types are handled, this
-  // test can turn into something like var.type >= PP_VARTYPE_STRING.
   bool IsCachedType(const PP_Var& var) {
-    return var.type == PP_VARTYPE_STRING || var.type == PP_VARTYPE_OBJECT;
+    return var.type >= PP_VARTYPE_STRING;
   }
 
   // The cache of these objects.  The value is a shared pointer so that
   // instances of subclasses can be inserted.
   typedef std::map<int64_t, SharedProxyVar> ProxyVarDictionary;
   ProxyVarDictionary proxy_var_cache_;
 
   static ProxyVarCache* cache_singleton;
 
   ProxyVarCache() {}
 };
 
 }  // namespace ppapi_proxy
 
 #endif  // NATIVE_CLIENT_SRC_SHARED_PPAPI_PROXY_PROXY_VAR_CACHE_H_