PPAPI: Implement synchronous postMessage

content/renderer/pepper/resource_converter.cc

 // Copyright 2013 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 "content/renderer/pepper/resource_converter.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "content/renderer/pepper/pepper_file_system_host.h"
@@ skipping 257 matching lines @@
 
 void ResourceConverterImpl::Flush(const base::Callback<void(bool)>& callback) {
   host_->CreateBrowserResourceHosts(
       instance_,
       browser_host_create_messages_,
       base::Bind(&FlushComplete, callback, browser_vars_));
   browser_host_create_messages_.clear();
   browser_vars_.clear();
 }
 
+bool ResourceConverterImpl::FlushSync() {
+  if (!browser_host_create_messages_.empty()) {
+    // TODO(dmichael): Make these work; we have to make a synchronous path to
+    //                 create browser-side hosts. crbug.com/367896
+    return false;
+  }
+  return true;
+}
+
 bool ResourceConverterImpl::ToV8Value(const PP_Var& var,
                                       v8::Handle<v8::Context> context,
                                       v8::Handle<v8::Value>* result) {
   DCHECK(var.type == PP_VARTYPE_RESOURCE);
 
   ResourceVar* resource = ResourceVar::FromPPVar(var);
   if (!resource) {
     NOTREACHED();
     return false;
   }
@@ skipping 47 matching lines @@
     const IPC::Message& create_message,
     const IPC::Message& browser_host_create_message) {
   scoped_refptr<HostResourceVar> result =
       CreateResourceVar(pending_renderer_id, create_message);
   browser_host_create_messages_.push_back(browser_host_create_message);
   browser_vars_.push_back(result);
   return result;
 }
 
 }  // namespace content