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

ppapi/native_client/src/shared/ppapi_proxy/browser_ppp_input_event.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/browser_ppp_input_event.h"
 
 #include "native_client/src/include/nacl_scoped_ptr.h"
 #include "native_client/src/include/portability.h"
 #include "native_client/src/shared/ppapi_proxy/browser_globals.h"
 #include "native_client/src/shared/ppapi_proxy/input_event_data.h"
 #include "native_client/src/shared/ppapi_proxy/object_serialize.h"
@@ skipping 67 matching lines @@
     // No default case; if any new types are added we should get a compile
     // warning.
   }
   // Now data and character_text have all the data we want to send to the
   // untrusted side.
 
   // character_text should either be undefined or a string type.
   DCHECK((character_text.type == PP_VARTYPE_UNDEFINED) ||
          (character_text.type == PP_VARTYPE_STRING));
   // Serialize the character_text Var.
-  uint32_t text_size = kMaxVarSize;
+  uint32_t text_size = 0;
   nacl::scoped_array<char> text_bytes(Serialize(&character_text, 1,
                                                 &text_size));
   int32_t handled;
   NaClSrpcError srpc_result =
       PppInputEventRpcClient::PPP_InputEvent_HandleInputEvent(
           GetMainSrpcChannel(instance),
           instance,
           input_event,
           sizeof(data),
           reinterpret_cast<char*>(&data),
@@ skipping 16 matching lines @@
 }  // namespace
 
 const PPP_InputEvent* BrowserInputEvent::GetInterface() {
   static const PPP_InputEvent input_event_interface = {
     HandleInputEvent
   };
   return &input_event_interface;
 }
 
 }  // namespace ppapi_proxy