Use macros to define pepper interfaces

ppapi/proxy/ppb_cursor_control_proxy.h

Index: ppapi/proxy/ppb_cursor_control_proxy.h
diff --git a/ppapi/proxy/ppb_cursor_control_proxy.h b/ppapi/proxy/ppb_cursor_control_proxy.h
index 027dbfef610847fb6fb78b0fb025462d012a9419..6c42c9bd7a22816bea6f80ff061ad8ead3a7fc33 100644
--- a/ppapi/proxy/ppb_cursor_control_proxy.h
+++ b/ppapi/proxy/ppb_cursor_control_proxy.h
@@ -21,15 +21,12 @@ namespace ppapi {
 namespace proxy {
 
 class PPB_CursorControl_Proxy
-    : public ppapi::FunctionGroupBase,
-      public ppapi::thunk::PPB_CursorControl_FunctionAPI,
-      public InterfaceProxy {
+    : public InterfaceProxy,
+      public ppapi::thunk::PPB_CursorControl_FunctionAPI {
  public:
-  PPB_CursorControl_Proxy(Dispatcher* dispatcher, const void* target_interface);
+  PPB_CursorControl_Proxy(Dispatcher* dispatcher);
   virtual ~PPB_CursorControl_Proxy();
 
-  static const Info* GetInfo();
-
   // FunctionGroupBase overrides.
   ppapi::thunk::PPB_CursorControl_FunctionAPI* AsPPB_CursorControl_FunctionAPI()
       OVERRIDE;
@@ -47,6 +44,8 @@ class PPB_CursorControl_Proxy
   // InterfaceProxy implementation.
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 
+  static const InterfaceID kInterfaceID = INTERFACE_ID_PPB_CURSORCONTROL;
+
  private:
   // Message handlers.
   void OnMsgSetCursor(PP_Instance instance,