Browser Plugin: Add HTML5-like postMessage support

content/browser/browser_plugin/browser_plugin_guest_helper.cc

Index: content/browser/browser_plugin/browser_plugin_guest_helper.cc
diff --git a/content/browser/browser_plugin/browser_plugin_guest_helper.cc b/content/browser/browser_plugin/browser_plugin_guest_helper.cc
index 95f725c79d70e7b6fd4e9edc2b6abf56731d7b6b..e49411be63032a63481ef6962ad961de924192ea 100644
--- a/content/browser/browser_plugin/browser_plugin_guest_helper.cc
+++ b/content/browser/browser_plugin/browser_plugin_guest_helper.cc
@@ -35,6 +35,16 @@ bool BrowserPluginGuestHelper::OnMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(BrowserPluginGuestHelper, message)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_RouteMessageEvent, OnRouteMessageEvent)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+
+  if (static_cast<RenderViewHostImpl*>(render_view_host())->is_swapped_out()) {
+    return handled;
+  }
+
+  handled = true;
+  IPC_BEGIN_MESSAGE_MAP(BrowserPluginGuestHelper, message)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateRect, OnUpdateRect)
     IPC_MESSAGE_HANDLER(ViewHostMsg_HandleInputEvent_ACK, OnHandleInputEventAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_TakeFocus, OnTakeFocus)
@@ -69,4 +79,9 @@ void BrowserPluginGuestHelper::OnSetCursor(const WebCursor& cursor) {
   guest_->SetCursor(cursor);
 }
 
+void BrowserPluginGuestHelper::OnRouteMessageEvent(
+    const ViewMsg_PostMessage_Params& params) {
+  guest_->RouteMessageEvent(params);
+}
+
 }  // namespace content