Rename PPB_Find_Dev to PPB_Find_Private

ppapi/api/private/ppb_find_private.idl

Index: ppapi/api/private/ppb_find_private.idl
diff --git a/ppapi/api/dev/ppb_find_dev.idl b/ppapi/api/private/ppb_find_private.idl
similarity index 88%
rename from ppapi/api/dev/ppb_find_dev.idl
rename to ppapi/api/private/ppb_find_private.idl
index d43e62bbc75eeebbfd02ec9bafcd81a807e387c7..4e80a8a7768ee03b81a339dbeff3935f7de560b0 100644
--- a/ppapi/api/dev/ppb_find_dev.idl
+++ b/ppapi/api/private/ppb_find_private.idl
@@ -4,7 +4,7 @@
  */
 
 /**
- * This file defines the <code>PPB_Find_Dev</code> interface.
+ * This file defines the <code>PPB_Find_Private</code> interface.
  */
 
 [generate_thunk]
@@ -13,9 +13,10 @@ label Chrome {
   M14 = 0.3
 };
 
-// TODO(raymes): Make PPP/PPB_Find_Dev a private interface. It's only used by
-// PDF currently and it's restrictive in the way it can be used.
-interface PPB_Find_Dev {
+/**
+ * This is a private interface for doing browser Find in the PDF plugin.
+ */
+interface PPB_Find_Private {
   /**
    * Sets the instance of this plugin as the mechanism that will be used to
    * handle find requests in the renderer. This will only succeed if the plugin