Add nanobench stats scripts to Skia repo.

bin/c

Index: bin/c
diff --git a/bin/c b/bin/c
new file mode 100755
index 0000000000000000000000000000000000000000..a7b752cc674ee27ff69357fc1d3ce17630a36a9b
--- /dev/null
+++ b/bin/c
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+set -e
+
+BRANCH=$(git branch | grep \* | cut -d" "  -f 2)
+CLEAN=${CLEAN-clean}
+SAMPLES=100
+
+if [ $BRANCH == $CLEAN ]; then
+    echo "Comparing $BRANCH to itself."
+    exit 1
+fi
+
+git checkout $CLEAN
+./gyp_skia >/dev/null
+ninja -C out/Release nanobench
+out/Release/nanobench $@ --samples $SAMPLES -v 2> $CLEAN.log
+
+git checkout $BRANCH
+./gyp_skia >/dev/null
+ninja -C out/Release nanobench
+out/Release/nanobench $@ --samples $SAMPLES -v 2> $BRANCH.log
+
+compare $CLEAN.log $BRANCH.log