Enable Sdch in Cronet

net/url_request/url_request_context_builder.cc

Index: net/url_request/url_request_context_builder.cc
diff --git a/net/url_request/url_request_context_builder.cc b/net/url_request/url_request_context_builder.cc
index aa589f564c61bfa00c35077f50174bf5fd3994cf..b7dd9684bd21c32531bdc7881cf4547ad9e4eb18 100644
--- a/net/url_request/url_request_context_builder.cc
+++ b/net/url_request/url_request_context_builder.cc
@@ -16,6 +16,7 @@
 #include "net/base/cache_type.h"
 #include "net/base/net_errors.h"
 #include "net/base/network_delegate_impl.h"
+#include "net/base/sdch_manager.h"
 #include "net/cert/cert_verifier.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/dns/host_resolver.h"
@@ -205,7 +206,8 @@ URLRequestContextBuilder::URLRequestContextBuilder()
       ftp_enabled_(false),
 #endif
       http_cache_enabled_(true),
-      throttling_enabled_(false) {
+      throttling_enabled_(false),
+      sdch_enabled_(false) {
 }
 
 URLRequestContextBuilder::~URLRequestContextBuilder() {}
@@ -310,6 +312,11 @@ URLRequestContext* URLRequestContextBuilder::Build() {
         new DefaultChannelIDStore(NULL), context->GetFileTaskRunner())));
   }
 
+  if (sdch_enabled_) {
+    storage->set_sdch_manager(
+        scoped_ptr<net::SdchManager>(new SdchManager()).Pass());
+  }
+
   storage->set_transport_security_state(new net::TransportSecurityState());
   if (!transport_security_persister_path_.empty()) {
     context->set_transport_security_persister(