Delete Cronet Data Reduction Proxy integration

components/cronet/url_request_context_config.h

Index: components/cronet/url_request_context_config.h
diff --git a/components/cronet/url_request_context_config.h b/components/cronet/url_request_context_config.h
index ce39823674a3df04444ce4439fe8e8a26c752ea7..6e55a92a29e665e6ed0626039ef1f67316ff76f2 100644
--- a/components/cronet/url_request_context_config.h
+++ b/components/cronet/url_request_context_config.h
@@ -102,14 +102,6 @@ struct URLRequestContextConfig {
       const std::string& user_agent,
       // JSON encoded experimental options.
       const std::string& experimental_options,
-      // Data reduction proxy key.
-      const std::string& data_reduction_proxy_key,
-      // Data reduction proxy.
-      const std::string& data_reduction_primary_proxy,
-      // Fallback data reduction proxy.
-      const std::string& data_reduction_fallback_proxy,
-      // Data reduction proxy secure proxy check URL.
-      const std::string& data_reduction_secure_proxy_check_url,
       // MockCertVerifier to use for testing purposes.
       std::unique_ptr<net::CertVerifier> mock_cert_verifier,
       // Enable network quality estimator.
@@ -154,11 +146,6 @@ struct URLRequestContextConfig {
   //   {"experiment1": {"option1": "option_value1", "option2": "option_value2",
   //    ...}, "experiment2: {"option3", "option_value3", ...}, ...}
   const std::string experimental_options;
-  // Enable Data Reduction Proxy with authentication key.
-  const std::string data_reduction_proxy_key;
-  const std::string data_reduction_primary_proxy;
-  const std::string data_reduction_fallback_proxy;
-  const std::string data_reduction_secure_proxy_check_url;
 
   // Certificate verifier for testing.
   std::unique_ptr<net::CertVerifier> mock_cert_verifier;
@@ -226,11 +213,6 @@ struct URLRequestContextConfigBuilder {
   //   {"experiment1": {"option1": "option_value1", "option2": "option_value2",
   //    ...}, "experiment2: {"option3", "option_value3", ...}, ...}
   std::string experimental_options = "{}";
-  // Enable Data Reduction Proxy with authentication key.
-  std::string data_reduction_proxy_key = "";
-  std::string data_reduction_primary_proxy = "";
-  std::string data_reduction_fallback_proxy = "";
-  std::string data_reduction_secure_proxy_check_url = "";
 
   // Certificate verifier for testing.
   std::unique_ptr<net::CertVerifier> mock_cert_verifier = nullptr;