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

net/proxy/proxy_script_fetcher_impl_unittest.cc

Index: net/proxy/proxy_script_fetcher_impl_unittest.cc
diff --git a/net/proxy/proxy_script_fetcher_impl_unittest.cc b/net/proxy/proxy_script_fetcher_impl_unittest.cc
index 4c5bd4c816839cfd6c4fa1b79b28a8cb0a168c2b..52c248f7b41440ed76a17e92d9495cc118d4834e 100644
--- a/net/proxy/proxy_script_fetcher_impl_unittest.cc
+++ b/net/proxy/proxy_script_fetcher_impl_unittest.cc
@@ -12,6 +12,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "net/base/filename_util.h"
 #include "net/base/load_flags.h"
+#include "net/base/network_delegate_impl.h"
 #include "net/base/test_completion_callback.h"
 #include "net/cert/mock_cert_verifier.h"
 #include "net/disk_cache/disk_cache.h"
@@ -107,7 +108,7 @@ GURL GetTestFileUrl(const std::string& relpath) {
 // without introducing layering violations.  Also causes a test failure if a
 // request is seen that doesn't set a load flag to bypass revocation checking.
 
-class BasicNetworkDelegate : public NetworkDelegate {
+class BasicNetworkDelegate : public NetworkDelegateImpl {
  public:
   BasicNetworkDelegate() {}
   ~BasicNetworkDelegate() override {}