Use macros to define pepper interfaces

ppapi/proxy/ppb_url_response_info_proxy.h

Index: ppapi/proxy/ppb_url_response_info_proxy.h
diff --git a/ppapi/proxy/ppb_url_response_info_proxy.h b/ppapi/proxy/ppb_url_response_info_proxy.h
index a81549df9e532e40a1580570a654a0532327e25f..8f97a536484c3dfda5f483c0318e6b13744f131f 100644
--- a/ppapi/proxy/ppb_url_response_info_proxy.h
+++ b/ppapi/proxy/ppb_url_response_info_proxy.h
@@ -24,12 +24,9 @@ class SerializedVarReturnValue;
 
 class PPB_URLResponseInfo_Proxy : public InterfaceProxy {
  public:
-  PPB_URLResponseInfo_Proxy(Dispatcher* dispatcher,
-                            const void* target_interface);
+  PPB_URLResponseInfo_Proxy(Dispatcher* dispatcher);
   virtual ~PPB_URLResponseInfo_Proxy();
 
-  static const Info* GetInfo();
-
   // URLResponseInfo objects are actually created and returned by the
   // URLLoader. This function allows the URLLoader to convert a new
   // HostResource representing a response info to a properly tracked
@@ -41,6 +38,8 @@ class PPB_URLResponseInfo_Proxy : public InterfaceProxy {
   // InterfaceProxy implementation.
   virtual bool OnMessageReceived(const IPC::Message& msg);
 
+  static const InterfaceID kInterfaceID = INTERFACE_ID_PPB_URL_RESPONSE_INFO;
+
  private:
   // Message handlers.
   void OnMsgGetProperty(const ppapi::HostResource& response,