Add EscapeURL to the ASCII escape methods....

net/base/escape.cc

Index: net/base/escape.cc
===================================================================
--- net/base/escape.cc	(revision 27534)
+++ net/base/escape.cc	(working copy)
@@ -186,6 +186,16 @@
   return Escape(path, kPathCharmap, false);
 }
 
+// non-printable, non-7bit, and (including space) ?>=<;+'&%$#"![\]^`{|}
+static const Charmap kUrlEscape(
+  0xffffffffL, 0xf80008fdL, 0x78000001L, 0xb8000001L,
+  0xffffffffL, 0xffffffffL, 0xffffffffL, 0xffffffffL
+);
+
+std::string EscapeUrl(const std::string& path) {
+  return Escape(path, kUrlEscape, true);
+}
+
 // non-7bit
 static const Charmap kNonASCIICharmap(
   0x00000000L, 0x00000000L, 0x00000000L, 0x00000000L,