[wasm-gms] Enable filesystem by default.

Some of the SVG libraries, there appear to be some SYScalls
(getStreamFromFD) that are no longer included in an emsdk 2.0.10 build.

Change-Id: Ib6ac4c20186e79316cd5b2566ed2deb2d3e3d0af
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/344076
Reviewed-by: Kevin Lubick <kjlubick@google.com>

Author: kjlubick

modules/canvaskit/compile_gm.sh

@@ -148,7 +148,7 @@ TESTS_TO_BUILD="tests/*.cpp"
 # When developing locally, it can be faster to focus only on the gms or tests you care about
 # (since they all have to be recompiled/relinked) every time. To do so, mark the following as true
 if false; then
-   GMS_TO_BUILD="gm/bleed.cpp gm/gm.cpp"
+   GMS_TO_BUILD="gm/coloremoji.cpp gm/gm.cpp"
    TESTS_TO_BUILD="tests/OctoBoundsTest.cpp tests/Test.cpp"
 fi
 
@@ -208,8 +208,8 @@ EMCC_DEBUG=1 ${EMCXX} \
     -s ALLOW_MEMORY_GROWTH=1 \
     -s EXPORT_NAME="InitWasmGMTests" \
     -s EXPORTED_FUNCTIONS=['_malloc','_free'] \
-    -s FORCE_FILESYSTEM=0 \
-    -s FILESYSTEM=0 \
+    -s FORCE_FILESYSTEM=1 \
+    -s FILESYSTEM=1 \
     -s MODULARIZE=1 \
     -s NO_EXIT_RUNTIME=1 \
     -s INITIAL_MEMORY=256MB \