[gtk+/gtk-2-24] Make _gtk_entry_completion_compute_prefix() public-internal

[Federico Mena Quintero <federico src gnome org>]

commit 55764dddcfc6c413acf667402c36f072c394974c
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Mar 8 21:59:00 2016 -0600

    Make _gtk_entry_completion_compute_prefix() public-internal

 gtk/gtkentrycompletion.c  |   11 +++++------
 gtk/gtkentryprivate.h     |    2 ++
 gtk/gtkfilechooserentry.c |    4 ++--
 3 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/gtk/gtkentrycompletion.c b/gtk/gtkentrycompletion.c
index 2fa7b56..08b74d8 100644
--- a/gtk/gtkentrycompletion.c
+++ b/gtk/gtkentrycompletion.c
@@ -1571,19 +1571,17 @@ gtk_entry_completion_cursor_on_match (GtkEntryCompletion *completion,
   return TRUE;
 }
 
-static gchar *
-gtk_entry_completion_compute_prefix (GtkEntryCompletion *completion)
+gchar *
+_gtk_entry_completion_compute_prefix (GtkEntryCompletion *completion,
+                                     const char         *key)
 {
   GtkTreeIter iter;
   gchar *prefix = NULL;
   gboolean valid;
-  const gchar *key;
 
   if (completion->priv->text_column < 0)
     return NULL;
 
-  key = gtk_entry_get_text (GTK_ENTRY (completion->priv->entry));
-
   valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (completion->priv->filter_model),
                                         &iter);
   
@@ -1753,7 +1751,8 @@ gtk_entry_completion_insert_prefix (GtkEntryCompletion *completion)
     g_signal_handler_block (completion->priv->entry,
                             completion->priv->insert_text_id);
 
-  prefix = gtk_entry_completion_compute_prefix (completion);
+  prefix = _gtk_entry_completion_compute_prefix (completion,
+                                                gtk_entry_get_text (GTK_ENTRY (completion->priv->entry)));
   if (prefix)
     {
       g_signal_emit (completion, entry_completion_signals[INSERT_PREFIX],
diff --git a/gtk/gtkentryprivate.h b/gtk/gtkentryprivate.h
index a767800..bdb41cb 100644
--- a/gtk/gtkentryprivate.h
+++ b/gtk/gtkentryprivate.h
@@ -74,6 +74,8 @@ struct _GtkEntryCompletionPrivate
 gboolean _gtk_entry_completion_resize_popup (GtkEntryCompletion *completion);
 void     _gtk_entry_completion_popup        (GtkEntryCompletion *completion);
 void     _gtk_entry_completion_popdown      (GtkEntryCompletion *completion);
+gchar *  _gtk_entry_completion_compute_prefix (GtkEntryCompletion *completion,
+                                              const char         *key);
 
 void      _gtk_entry_get_borders            (GtkEntry  *entry,
                                             gint      *xborder,
diff --git a/gtk/gtkfilechooserentry.c b/gtk/gtkfilechooserentry.c
index d62866f..05c8d88 100644
--- a/gtk/gtkfilechooserentry.c
+++ b/gtk/gtkfilechooserentry.c
@@ -27,7 +27,7 @@
 #include "gtkalignment.h"
 #include "gtkcelllayout.h"
 #include "gtkcellrenderertext.h"
-#include "gtkentry.h"
+#include "gtkentryprivate.h"
 #include "gtkfilesystemmodel.h"
 #include "gtklabel.h"
 #include "gtkmain.h"
@@ -363,7 +363,7 @@ explicitly_complete (GtkFileChooserEntry *chooser_entry)
       
       text = gtk_file_chooser_entry_get_completion_text (chooser_entry);
       text_len = strlen (text);
-      completion = gtk_entry_completion_compute_prefix (gtk_entry_get_completion (GTK_ENTRY 
(chooser_entry)), text);
+      completion = _gtk_entry_completion_compute_prefix (gtk_entry_get_completion (GTK_ENTRY 
(chooser_entry)), text);
       completion_len = completion ? strlen (completion) : 0;
 
       if (completion_len > text_len)