complete overhaul of webtry work partition between jail and host

experimental/webtry/scripts/fiddle_ninja

Index: experimental/webtry/scripts/fiddle_ninja
diff --git a/experimental/webtry/scripts/fiddle_ninja b/experimental/webtry/scripts/fiddle_ninja
new file mode 100755
index 0000000000000000000000000000000000000000..2a3e58000bd0283e98fe9372d28fd39b8df05d50
--- /dev/null
+++ b/experimental/webtry/scripts/fiddle_ninja
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# fiddle_ninja simply builds a Release version of the 
+# provided fiddle into the local skia tree's out/Release
+# directory.
+#
+# This script must be run after fiddle_gyp
+
+[ -z $SKIA_ROOT ] && SKIA_ROOT="/skia_build/skia"
+
+PATH=$PATH:/skia_build/depot_tools
+
+ninja -C $SKIA_ROOT/out/Release $1
+