Update PPAPI IDL generator to define versioned structs, and unversioned typedef.

ppapi/c/ppb_mouse_lock.h

Index: ppapi/c/ppb_mouse_lock.h
diff --git a/ppapi/c/ppb_mouse_lock.h b/ppapi/c/ppb_mouse_lock.h
index c7b074dced84c20da14b5e8b432ebc977a079b83..fa044ae0f6b070b316b228680c619828ae668755 100644
--- a/ppapi/c/ppb_mouse_lock.h
+++ b/ppapi/c/ppb_mouse_lock.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From ppb_mouse_lock.idl modified Fri Oct 14 18:59:25 2011. */
+/* From ppb_mouse_lock.idl modified Tue Oct 18 16:19:04 2011. */
 
 #ifndef PPAPI_C_PPB_MOUSE_LOCK_H_
 #define PPAPI_C_PPB_MOUSE_LOCK_H_
@@ -33,7 +33,7 @@
  * certain classes of applications, especially first person perspective 3D
  * applications and 3D modelling software.
  */
-struct PPB_MouseLock {
+struct PPB_MouseLock_1_0 {
   /**
    * Requests the mouse to be locked. The browser will permit mouse lock only
    * while the tab is in fullscreen mode.
@@ -69,6 +69,8 @@ struct PPB_MouseLock {
    */
   void (*UnlockMouse)(PP_Instance instance);
 };
+
+typedef struct PPB_MouseLock_1_0 PPB_MouseLock;
 /**
  * @}
  */