Create abstraction for DataReductionProxyParams.

components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h

Index: components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h
diff --git a/components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h b/components/data_reduction_proxy/core/common/data_reduction_proxy_config_values.h
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+// Copyright 2015 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.
+
+#ifndef COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_REDUCTION_PROXY_CONFIG_VALUES_H_
+#define COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_REDUCTION_PROXY_CONFIG_VALUES_H_
+
+class GURL;
+
+namespace net {
+class HostPortPair;
+class ProxyServer;
+}
+
+namespace data_reduction_proxy {
+
+struct DataReductionProxyTypeInfo;
+
+class DataReductionProxyConfigValues {
+ public:
+  virtual ~DataReductionProxyConfigValues() {}
+
+  // Returns true if the data reduction proxy promo may be shown.
+  // This is independent of whether the data reduction proxy is allowed.
+  // TODO(bengr): maybe tie to whether proxy is allowed.
+  virtual bool promo_allowed() const = 0;
+
+  // Returns true if the data reduction proxy should not actually use the
+  // proxy if enabled.
+  virtual bool holdback() const = 0;
+
+  // Returns true if the data reduction proxy configuration may be used.
+  virtual bool allowed() const = 0;
+
+  // Returns true if the fallback proxy may be used.
+  virtual bool fallback_allowed() const = 0;
+
+  // Returns true if the alternative data reduction proxy configuration may be
+  // used.
+  virtual bool alternative_allowed() const = 0;
+
+  // Returns true if the alternative fallback data reduction proxy
+  // configuration may be used.
+  virtual bool alternative_fallback_allowed() const = 0;
+
+  // Returns true if the proxy server uses an HTTP tunnel to provide HTTPS
+  // proxying.
+  virtual bool UsingHTTPTunnel(const net::HostPortPair& proxy_server) const = 0;
+
+  // Returns true if the specified |host_port_pair| matches a data reduction
+  // proxy. If true, |proxy_info.proxy_servers.first| will contain the name of
+  // the proxy that matches. |proxy_info.proxy_servers.second| will contain the
+  // name of the data reduction proxy server that would be used if
+  // |proxy_info.proxy_server.first| is bypassed, if one exists. In addition,
+  // |proxy_info| will note if the proxy was a fallback, an alternative, or a
+  // proxy for ssl; these are not mutually exclusive. |proxy_info| can be NULL
+  // if the caller isn't interested in its values. Virtual for testing.
+  virtual bool IsDataReductionProxy(const net::HostPortPair& host_port_pair,
+    DataReductionProxyTypeInfo* proxy_info) const = 0;
+
+  // Returns the data reduction proxy primary origin.
+  virtual const net::ProxyServer& origin() const = 0;
+
+  // Returns the data reduction proxy fallback origin.
+  virtual const net::ProxyServer& fallback_origin() const = 0;
+
+  // Returns the alternative data reduction proxy primary origin.
+  virtual const net::ProxyServer& alt_origin() const = 0;
+
+  // Returns the alternative data reduction proxy fallback origin.
+  virtual const net::ProxyServer& alt_fallback_origin() const = 0;
+
+  // Returns the data reduction proxy ssl origin that is used with the
+  // alternative proxy configuration.
+  virtual const net::ProxyServer& ssl_origin() const = 0;
+
+  // Returns the URL to check to decide if the secure proxy origin should be
+  // used.
+  virtual const GURL& secure_proxy_check_url() const = 0;
+};
+
+}  // namespace data_reduction_proxy
+
+#endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_REDUCTION_PROXY_CONFIG_VALUES_H_