Browser Plugin: Add HTML5-like postMessage support

content/renderer/browser_plugin/browser_plugin_manager_impl.h

Index: content/renderer/browser_plugin/browser_plugin_manager_impl.h
diff --git a/content/renderer/browser_plugin/browser_plugin_manager_impl.h b/content/renderer/browser_plugin/browser_plugin_manager_impl.h
index 13a1ef2d756be918ec309b9dc723531517bf2714..958781617e6fdd741b22d3726570687002da70af 100644
--- a/content/renderer/browser_plugin/browser_plugin_manager_impl.h
+++ b/content/renderer/browser_plugin/browser_plugin_manager_impl.h
@@ -8,6 +8,7 @@
 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
 #include "googleurl/src/gurl.h"
 
+struct BrowserPluginMsg_ReceiveMessage_Params;
 struct BrowserPluginMsg_UpdateRect_Params;
 
 namespace content {
@@ -35,6 +36,9 @@ class BrowserPluginManagerImpl : public BrowserPluginManager {
   void OnGuestCrashed(int instance_id);
   void OnDidNavigate(int instance_id, const GURL& url, int process_id);
   void OnAdvanceFocus(int instance_id, bool reverse);
+  void OnReceiveMessage(int instance_id,
+                        const BrowserPluginMsg_ReceiveMessage_Params& params);
+  void OnGuestContentWindowReady(int instance_id, int guest_routing_id);
   void OnShouldAcceptTouchEvents(int instance_id, bool accept);
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginManagerImpl);