Data Reduction Proxy Interstitials

components/data_reduction_proxy/content/browser/data_reduction_proxy_resource_throttle.h

+// 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.
+
+#ifndef COMPONENTS_DATA_REDUCTION_PROXY_CONTENT_BROWSER_DATA_REDUCTION_PROXY_RESOURCE_THROTTLE_H_
+#define COMPONENTS_DATA_REDUCTION_PROXY_CONTENT_BROWSER_DATA_REDUCTION_PROXY_RESOURCE_THROTTLE_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "components/data_reduction_proxy/content/browser/data_reduction_proxy_ui_manager.h"
+#include "content/public/browser/resource_throttle.h"
+#include "content/public/common/resource_type.h"
+#include "url/gurl.h"
+
+namespace net {
+class URLRequest;
+}
+
+namespace data_reduction_proxy {
+
+class DataReductionProxyParams;
+class DataReductionProxyUIManager;
+class DataReductionProxyUIService;
+
+class DataReductionProxyResourceThrottle

[bengr, 2014/12/17 00:30:20]

Comment.

[megjablon, 2014/12/23 02:18:04]

Done.

+    : public content::ResourceThrottle,
+      public base::SupportsWeakPtr<DataReductionProxyResourceThrottle> {
+ public:
+  DataReductionProxyResourceThrottle(

[bengr, 2014/12/17 00:30:20]

Comment.

[megjablon, 2014/12/23 02:18:04]

Done.

+      net::URLRequest* request,

[bengr, 2014/12/17 00:30:20]

Can this be const?

[megjablon, 2014/12/23 02:18:04]

Done.

+      content::ResourceType resource_type,
+      DataReductionProxyUIService* ui_service,

[bengr, 2014/12/17 00:30:20]

Can this be const?

[megjablon, 2014/12/23 02:18:04]

Done.

+      const DataReductionProxyParams* params);
+
+  virtual ~DataReductionProxyResourceThrottle();
+
+  // Overrides content::ResourceThrottle.
+  void WillStartUsingNetwork(bool* defer) override;
+  void WillRedirectRequest(const GURL& new_url, bool* defer) override;
+  void WillProcessResponse(bool* defer) override;
+  const char* GetNameForLogging() const override;
+
+ private:
+  enum State {
+    NOT_BYPASSED,
+    LOCAL_BYPASS,
+    REMOTE_BYPASS,
+  };
+
+  // Creates a bypass resource and calls StartDisplayingBlockingPage on the UI
+  // thread. Sets defer to true. A bypass resource is a structure used to pass
+  // parameters between the IO and UI thread when interacting with the blocking
+  // page.
+  void DisplayBlockingPage(bool* defer);
+
+  // Called on the IO thread when the user has decided to proceed with the
+  // current request, or go back.
+  void OnBlockingPageComplete(bool proceed);
+
+  // Starts displaying the data reduction proxy interstitial page if it is not
+  // prerendering. Called on the UI thread.
+  static void StartDisplayingBlockingPage(
+      const base::WeakPtr<DataReductionProxyResourceThrottle>& throttle,
+      scoped_refptr<DataReductionProxyUIManager> ui_manager,
+      const DataReductionProxyUIManager::BypassResource& resource);
+
+  State state_;

[bengr, 2014/12/17 00:30:20]

Document all member variables.

[megjablon, 2014/12/23 02:18:05]

Done.

+  // Guaranteed to be valid for the lifetime of this class.
+  net::URLRequest* request_;
+  DataReductionProxyUIService* ui_service_;
+  const DataReductionProxyParams* params_;
+  const bool is_subresource_;
+
+  DISALLOW_COPY_AND_ASSIGN(DataReductionProxyResourceThrottle);
+};
+
+}  // namespace data_reduction_proxy
+
+#endif  // COMPONENTS_DATA_REDUCTION_PROXY_CONTENT_BROWSER_DATA_REDUCTION_PROXY_RESOURCE_THROTTLE_H_