Porting ppapi_tests framework to postMessage.

ppapi/proxy/ppb_instance_proxy.cc

Index: ppapi/proxy/ppb_instance_proxy.cc
diff --git a/ppapi/proxy/ppb_instance_proxy.cc b/ppapi/proxy/ppb_instance_proxy.cc
index 6850971d4c71734014c6f00fb75d3588a6175282..7c3827fb3532bf5b39d8d1946f820c1f16d2a7e0 100644
--- a/ppapi/proxy/ppb_instance_proxy.cc
+++ b/ppapi/proxy/ppb_instance_proxy.cc
@@ -7,6 +7,7 @@
 #include "ppapi/c/dev/ppb_fullscreen_dev.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/c/ppb_instance.h"
+#include "ppapi/c/ppb_messaging.h"
 #include "ppapi/proxy/host_dispatcher.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource.h"
@@ -70,6 +71,18 @@ const InterfaceProxy::Info* PPB_Instance_Proxy::GetInfo0_5() {
 }
 
 // static
+const InterfaceProxy::Info* PPB_Instance_Proxy::GetInfoMessaging() {
+  static const Info info = {
+    ppapi::thunk::GetPPB_Messaging_Thunk(),
+    PPB_MESSAGING_INTERFACE,
+    INTERFACE_ID_NONE,  // 0_5 is the canonical one.
+    false,
+    &CreateInstanceProxy,
+  };
+  return &info;
+}
+
+// static
 const InterfaceProxy::Info* PPB_Instance_Proxy::GetInfoPrivate() {
   static const Info info = {
     ppapi::thunk::GetPPB_Instance_Private_Thunk(),
@@ -112,6 +125,8 @@ bool PPB_Instance_Proxy::OnMessageReceived(const IPC::Message& msg) {
                         OnMsgIsFullFrame)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_ExecuteScript,
                         OnMsgExecuteScript)
+    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_PostMessage,
+                        OnMsgPostMessage)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_SetFullscreen,
                         OnMsgSetFullscreen)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBInstance_GetScreenSize,