[Cronet] Remove JSON serialization of CronetEngine.Builder

components/cronet/url_request_context_config_list.h

Index: components/cronet/url_request_context_config_list.h
diff --git a/components/cronet/url_request_context_config_list.h b/components/cronet/url_request_context_config_list.h
deleted file mode 100644
index 7636e95f643113e7c5bf49f052f80fd8f5ba302a..0000000000000000000000000000000000000000
--- a/components/cronet/url_request_context_config_list.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This file intentionally does not have header guards, it's included
-// inside a macro to generate enum values.
-#ifndef DEFINE_CONTEXT_CONFIG
-#error "DEFINE_CONTEXT_CONFIG should be defined before including this file"
-#endif
-// See HttpUrlRequestFactoryConfig.java for description of these parameters.
-DEFINE_CONTEXT_CONFIG(USER_AGENT)
-DEFINE_CONTEXT_CONFIG(STORAGE_PATH)
-DEFINE_CONTEXT_CONFIG(ENABLE_LEGACY_MODE)
-DEFINE_CONTEXT_CONFIG(NATIVE_LIBRARY_NAME)
-DEFINE_CONTEXT_CONFIG(ENABLE_QUIC)
-DEFINE_CONTEXT_CONFIG(ENABLE_SPDY)
-DEFINE_CONTEXT_CONFIG(ENABLE_SDCH)
-DEFINE_CONTEXT_CONFIG(DATA_REDUCTION_PROXY_KEY)
-DEFINE_CONTEXT_CONFIG(DATA_REDUCTION_PRIMARY_PROXY)
-DEFINE_CONTEXT_CONFIG(DATA_REDUCTION_FALLBACK_PROXY)
-DEFINE_CONTEXT_CONFIG(DATA_REDUCTION_SECURE_PROXY_CHECK_URL)
-DEFINE_CONTEXT_CONFIG(HTTP_CACHE)
-DEFINE_CONTEXT_CONFIG(HTTP_CACHE_MAX_SIZE)
-
-DEFINE_CONTEXT_CONFIG(HTTP_CACHE_DISABLED)
-DEFINE_CONTEXT_CONFIG(HTTP_CACHE_DISK)
-DEFINE_CONTEXT_CONFIG(HTTP_CACHE_MEMORY)
-DEFINE_CONTEXT_CONFIG(LOAD_DISABLE_CACHE)
-
-DEFINE_CONTEXT_CONFIG(QUIC_HINTS)
-DEFINE_CONTEXT_CONFIG(QUIC_HINT_HOST)
-DEFINE_CONTEXT_CONFIG(QUIC_HINT_PORT)
-DEFINE_CONTEXT_CONFIG(QUIC_HINT_ALT_PORT)
-
-DEFINE_CONTEXT_CONFIG(EXPERIMENTAL_OPTIONS)
-
-// For Testing.
-DEFINE_CONTEXT_CONFIG(MOCK_CERT_VERIFIER)