Fix read-after-free on EGL extensions

Cache the read extensions as an std::string, since the returned C string
may be not be permanent.

Change-Id: I856b2b784ab4027da25996b2bf741b30cda10e05
Reviewed-by: Michal Klocek <michal.klocek@qt.io>
(cherry picked from commit fd2fc0d2a86f39d563720563555ca6319f8ab223)

1 files changed, 3 insertions, 3 deletions

diff --git a/src/core/ozone/gl_surface_qt.h b/src/core/ozone/gl_surface_qt.h
index cbdc8876a..b3a53d6b3 100644
--- a/src/core/ozone/gl_surface_qt.h
+++ b/src/core/ozone/gl_surface_qt.h
@@ -37,11 +37,11 @@
 **
 ****************************************************************************/
 
-
-
 #ifndef GL_SURFACE_QT_H_
 #define GL_SURFACE_QT_H_
 
+#include <string>
+
 #include "ui/gfx/geometry/size.h"
 #include "ui/gl/gl_surface.h"
 
@@ -71,7 +71,7 @@ protected:
 public:
     static void* g_config;
     static void* g_display;
-    static const char* g_extensions;
+    static std::string g_extensions;
 
 private:
     DISALLOW_COPY_AND_ASSIGN(GLSurfaceQt);