[epiphany] Require WebKitGTK+ 2.15.2

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 53e91aac49fe9551676ea557220017167ce16072
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Tue Nov 22 10:18:08 2016 -0600

    Require WebKitGTK+ 2.15.2
    
    For new form control detection API

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e6bf9d5..5fee50e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -96,7 +96,7 @@ LT_LIB_M
 
 GLIB_REQUIRED=2.44.0
 GTK_REQUIRED=3.22.0
-WEBKITGTK_REQUIRED=2.15.1
+WEBKITGTK_REQUIRED=2.15.2
 
 PKG_CHECK_MODULES([CAIRO], [cairo >= 1.2])
 PKG_CHECK_MODULES([GCR], [gcr-3 >= 3.5.5])