Added Dev host for data reduction proxy controlled by Finch experiment.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 123834258e4eabb30ab21ad3e22baea2a52d6340..7f0b05309f03bda8e52e5ab6a45e24ef2d7ec45c 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1358,6 +1358,9 @@ const char kSpdyProxyAuthOrigin[]           = "spdy-proxy-auth-origin";
 // Authentication string for the data reduction proxy.
 const char kSpdyProxyAuthValue[]            = "spdy-proxy-auth-value";
 
+// Origin for which dev version of SpdyProxy authentication is supported.
+const char kSpdyProxyDevAuthOrigin[]        = "spdy-proxy-dev-auth-origin";
+
 // Speculative resource prefetching.
 const char kSpeculativeResourcePrefetching[] =
     "speculative-resource-prefetching";