Advertise robustness extension strings.

src/common/version.h

 #define MAJOR_VERSION 0
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 813
+#define BUILD_REVISION 850
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/libEGL/Display.cpp

@@ -1017,6 +1017,10 @@ void Display::initExtensionString()
 
     mExtensionString = "";
 
+    // Multi-vendor (EXT) extensions
+    mExtensionString += "EGL_EXT_create_context_robustness ";
+
+    // ANGLE-specific extensions
     if (isd3d9ex) {
         mExtensionString += "EGL_ANGLE_d3d_share_handle_client_buffer ";
     }

src/libGLESv2/Context.cpp

@@ -3420,6 +3420,7 @@ void Context::initExtensionString()
 
     // Multi-vendor (EXT) extensions
     mExtensionString += "GL_EXT_read_format_bgra ";
+    mExtensionString += "GL_EXT_robustness ";
 
     if (supportsDXT1Textures())
     {