Add ability to create pending resource hosts.

ppapi/proxy/plugin_resource.cc

 // 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 "ppapi/proxy/plugin_resource.h"
 
 #include <limits>
 
 #include "ppapi/proxy/ppapi_messages.h"
 
@@ skipping 63 matching lines @@
     sent_create_to_renderer_ = true;
   } else {
     DCHECK(!sent_create_to_browser_);
     sent_create_to_browser_ = true;
   }
   ResourceMessageCallParams params(pp_resource(), GetNextSequence());
   GetSender(dest)->Send(
       new PpapiHostMsg_ResourceCreated(params, pp_instance(), msg));
 }
 
+void PluginResource::AttachToPendingHost(Destination dest,
+                                         int pending_host_id) {
+  // Connecting to a pending host is a replacement for "create".
+  if (dest == RENDERER) {
+    DCHECK(!sent_create_to_renderer_);
+    sent_create_to_renderer_ = true;
+  } else {
+    DCHECK(!sent_create_to_browser_);
+    sent_create_to_browser_ = true;
+  }
+  GetSender(dest)->Send(
+      new PpapiHostMsg_AttachToPendingHost(pp_resource(), pending_host_id));
+}
+
 void PluginResource::Post(Destination dest, const IPC::Message& msg) {
   ResourceMessageCallParams params(pp_resource(), GetNextSequence());
   SendResourceCall(dest, params, msg);
 }
 
 bool PluginResource::SendResourceCall(
     Destination dest,
     const ResourceMessageCallParams& call_params,
     const IPC::Message& nested_msg) {
   return GetSender(dest)->Send(
@@ skipping 20 matching lines @@
   int32_t ret = next_sequence_number_;
   if (next_sequence_number_ == std::numeric_limits<int32_t>::max())
     next_sequence_number_ = 1;  // Skip 0 which is invalid.
   else
     next_sequence_number_++;
   return ret;
 }
 
 }  // namespace proxy
 }  // namespace ppapi