Add google-endpoints to third_party/.

third_party/google-endpoints/libfuturize/fixes/fix_bytes.py

Index: third_party/google-endpoints/libfuturize/fixes/fix_bytes.py
diff --git a/third_party/google-endpoints/libfuturize/fixes/fix_bytes.py b/third_party/google-endpoints/libfuturize/fixes/fix_bytes.py
new file mode 100644
index 0000000000000000000000000000000000000000..42021223ab5ea3bc249e63b62baf78fa2a3327f2
--- /dev/null
+++ b/third_party/google-endpoints/libfuturize/fixes/fix_bytes.py
@@ -0,0 +1,24 @@
+"""Optional fixer that changes all unprefixed string literals "..." to b"...".
+
+br'abcd' is a SyntaxError on Python 2 but valid on Python 3.
+ur'abcd' is a SyntaxError on Python 3 but valid on Python 2.
+
+"""
+from __future__ import unicode_literals
+
+import re
+from lib2to3.pgen2 import token
+from lib2to3 import fixer_base
+
+_literal_re = re.compile(r"[^bBuUrR]?[\'\"]")
+
+class FixBytes(fixer_base.BaseFix):
+    BM_compatible = True
+    PATTERN = "STRING"
+
+    def transform(self, node, results):
+        if node.type == token.STRING:
+            if _literal_re.match(node.value):
+                new = node.clone()
+                new.value = u'b' + new.value
+                return new