Lift the 64K message size limit for postMessage to/from NativeClient.

ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_testing.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
 #include "native_client/src/shared/ppapi_proxy/plugin_ppb_testing.h"
 
 #include <cstddef>
 #include <new>
 #include <vector>
 
 #include "native_client/src/include/nacl_scoped_ptr.h"
@@ skipping 106 matching lines @@
 }
 
 struct PP_Var GetDocumentURL(PP_Instance instance,
                              struct PP_URLComponents_Dev* components) {
   DebugPrintf("PPB_Testing::GetDocumentURL: "
               "instance=%"NACL_PRIu32"\n", instance);
 
   NaClSrpcChannel* channel = GetMainSrpcChannel();
   nacl_abi_size_t components_size =
       (components != NULL) ? kPPURLComponentsDevBytes : 0;
-  nacl_abi_size_t url_size = kMaxVarSize;
-  nacl::scoped_array<char> url_bytes(new (std::nothrow) char[url_size]);
+  nacl_abi_size_t url_size = kMaxReturnVarSize;
+  nacl::scoped_array<char> url_bytes(new char[url_size]);
   if (url_bytes.get() == NULL)
     return PP_MakeUndefined();
 
   NaClSrpcError srpc_result =
       PpbTestingRpcClient::PPB_Testing_GetDocumentURL(
           channel,
           instance,
           &components_size, reinterpret_cast<char*>(components),
           &url_size, url_bytes.get());
 
@@ skipping 29 matching lines @@
     GetLiveObjectsForInstance,
     IsOutOfProcess,
     SimulateInputEvent,
     GetDocumentURL,
     GetLiveVars
   };
   return &testing_interface;
 }
 
 }  // namespace ppapi_proxy