Move data reduction proxy logic out of chrome and android webview network delegate

components/cronet/android/cronet_url_request_context_adapter.cc

Index: components/cronet/android/cronet_url_request_context_adapter.cc
diff --git a/components/cronet/android/cronet_url_request_context_adapter.cc b/components/cronet/android/cronet_url_request_context_adapter.cc
index da9e6630fc0d307b02e91d97fe1c57774270eafb..eac1ea4f0c35d17b4e7719c70d6e212ab0357a31 100644
--- a/components/cronet/android/cronet_url_request_context_adapter.cc
+++ b/components/cronet/android/cronet_url_request_context_adapter.cc
@@ -10,6 +10,7 @@
 #include "components/cronet/url_request_context_config.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log_logger.h"
+#include "net/base/network_delegate_impl.h"
 #include "net/cert/cert_verifier.h"
 #include "net/http/http_auth_handler_factory.h"
 #include "net/http/http_network_layer.h"
@@ -25,7 +26,7 @@
 
 namespace {
 
-class BasicNetworkDelegate : public net::NetworkDelegate {
+class BasicNetworkDelegate : public net::NetworkDelegateImpl {
  public:
   BasicNetworkDelegate() {}
   virtual ~BasicNetworkDelegate() {}