Adjust flaky mock list and update baseline

Author: camdecoster

test/image/baselines/map_density0-legend.png

@@ -9,12 +9,7 @@
     "map_stamen-style"
   ],
   "flaky": ["gl3d_bunny-hull"],
-  "flaky_maps": [
-    "map_density0-legend",
-    "map_osm-style",
-    "map_predefined-styles1",
-    "map_predefined-styles2"
-  ],
+  "flaky_maps": ["map_density0-legend"],
   "flaky_virtual_webgl": [
     "gl3d_cone-wind",
     "gl3d_ibm-plot",

test/image/compare_pixels_collections.json

@@ -79,7 +79,7 @@ for (let mockName of allMockList) {
 
     let threshold = 0;
     if (flakyList.has(mockName)) threshold = 0.2;
-    // else if (flakyListMaps.has(mockName)) threshold = 0.5;
+    else if (flakyListMaps.has(mockName)) threshold = 0.2;
     if (virtualWebgl) threshold = Math.max(threshold, flakyVirtualWebgl.has(mockName) ? 0.7 : 0.4);
 
     if (mathjax3) mockName = 'mathjax3___' + mockName;