Add data reduction functionality to all platforms.

net/proxy/proxy_server.h

Index: net/proxy/proxy_server.h
diff --git a/net/proxy/proxy_server.h b/net/proxy/proxy_server.h
index 27b8b049e509149e9c4950fc74dc4f530c4e1210..44cfced409e37750b0860c6d5b7051d6031a5780 100644
--- a/net/proxy/proxy_server.h
+++ b/net/proxy/proxy_server.h
@@ -154,13 +154,11 @@ class NET_EXPORT ProxyServer {
     return host_port_pair_ < other.host_port_pair_;
   }
 
-#if defined(SPDY_PROXY_AUTH_ORIGIN)
   // Returns true if this proxy server is the data reduction proxy or its
   // fallback, respectively, as configured in gyp. These functions will return
   // false for data reduction proxy servers specified on the command line.
   bool isDataReductionProxy() const;
   bool isDataReductionProxyFallback() const;
-#endif  // defined(SPDY_PROXY_AUTH_ORIGIN)
 
  private:
   // Creates a ProxyServer given a scheme, and host/port string. If parsing the