Migrate components/data_reduction_proxy to Mojo interfaces.

components/data_reduction_proxy/content/browser/data_reduction_proxy_host_impl.h

+// Copyright 2016 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_CONTENT_BROWSER_DATA_REDUCTION_PROXY_HOST_IMPL_H_
+#define COMPONENTS_DATA_REDUCTION_PROXY_CONTENT_BROWSER_DATA_REDUCTION_PROXY_HOST_IMPL_H_
+
+#include "base/macros.h"
+#include "components/data_reduction_proxy/content/common/data_reduction_proxy.mojom.h"
+#include "content/public/browser/render_process_host_observer.h"
+#include "mojo/public/cpp/bindings/binding_set.h"
+
+namespace net {
+class HostPortPair;
+}
+
+namespace data_reduction_proxy {
+
+class DataReductionProxyConfig;
+
+class DataReductionProxyHostImpl : public mojom::DataReductionProxyHost,
+                                   public content::RenderProcessHostObserver {
+ public:
+  // |config| may be null.
+  DataReductionProxyHostImpl(DataReductionProxyConfig* config,
+                             content::RenderProcessHost* host);
+
+  ~DataReductionProxyHostImpl() override;
+
+  void BindRequest(mojom::DataReductionProxyHostRequest request);
+
+  // mojom::DataReductionProxyHost methods:
+  void IsDataReductionProxy(
+      const net::HostPortPair& proxy_server,
+      const IsDataReductionProxyCallback& callback) override;
+
+  // content::RenderProcessHostObserver methods:
+  void RenderProcessHostDestroyed(content::RenderProcessHost* host) override;
+
+ private:
+  // Must outlive |this|. May be null.
+  DataReductionProxyConfig* config_;
+
+  mojo::BindingSet<mojom::DataReductionProxyHost> bindings_;
+
+  DISALLOW_COPY_AND_ASSIGN(DataReductionProxyHostImpl);
+};
+
+}  // namespace data_reduction_proxy
+
+#endif  // COMPONENTS_DATA_REDUCTION_PROXY_CONTENT_BROWSER_DATA_REDUCTION_PROXY_HOST_IMPL_H_