Bug 1497829. Update webrender to commit 1396114d80fb19df2295a40b0b14abc8f24afa03

--HG--
extra : rebase_source : 83329c3193d0e91e5d5a12d688db0d70cd30389f

gfx/webrender/res/brush.glsl

@@ -66,7 +66,7 @@ void main(void) {
         //           effect. We can tidy this up as we move
         //           more items to be brush shaders.
 #ifdef WR_FEATURE_ALPHA_PASS
-        init_transform_vs(vec4(vec2(-1000000.0), vec2(1000000.0)));
+        init_transform_vs(vec4(vec2(-1.0e16), vec2(1.0e16)));
 #endif
     } else {
         bvec4 edge_mask = notEqual(edge_flags & ivec4(1, 2, 4, 8), ivec4(0));

gfx/webrender_bindings/revision.txt

@@ -1 +1 @@
-69fddc3faf1a379a560106f12687d08cbbe304dd
+1396114d80fb19df2295a40b0b14abc8f24afa03