Data Reduction Proxy blocking page and resources

components/data_reduction_proxy/core/browser/data_reduction_proxy_debug_ui_manager_base.h

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_debug_ui_manager_base.h
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_debug_ui_manager_base.h b/components/data_reduction_proxy/core/browser/data_reduction_proxy_debug_ui_manager_base.h
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+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_debug_ui_manager_base.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_BROWSER_DATA_REDUCTION_PROXY_DEBUG_UI_MANAGER_BASE_H_
+#define COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DATA_REDUCTION_PROXY_DEBUG_UI_MANAGER_BASE_H_
+
+#include <vector>
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "url/gurl.h"
+
+namespace data_reduction_proxy {
+
+class DataReductionProxyDebugUIManagerBase
+    : public base::RefCountedThreadSafe<DataReductionProxyDebugUIManagerBase> {
+ public:
+  // Passed a boolean indicating whether or not it is OK to proceed with
+  // loading an URL.
+  typedef base::Callback<void(bool /*proceed*/)> UrlCheckCallback;
+
+  // Structure used to pass parameters between the IO and UI thread when
+  // interacting with the blocking page.
+  struct BypassResource {
+    BypassResource()
+        : is_subresource(false),
+          render_process_host_id(-1),
+          render_view_id(-1) {};
+    ~BypassResource() {};
+
+    GURL url;
+    bool is_subresource;
+    UrlCheckCallback callback;  // This is called back on the IO thread.
+    int render_process_host_id;
+    int render_view_id;
+  };
+
+  // Using |resource.render_process_host_id| and |resource.render_view_id|
+  // checks if WebContents exists for the RenderViewHost retreived from these
+  // id's.
+  virtual bool IsTabClosed(const BypassResource& resource) const = 0;
+
+  // Called on the UI thread to display a blocking page. |url| is the url
+  // of the resource that bypassed. If the request contained a chain of
+  // redirects, |url| is the last url in the chain.
+  virtual void DisplayBlockingPage(const BypassResource& resource) = 0;
+
+  // The blocking page on the UI thread has completed.
+  virtual void OnBlockingPageDone(
+      const std::vector<BypassResource>& resources, bool proceed) = 0;
+
+ protected:
+  friend class base::RefCountedThreadSafe<DataReductionProxyDebugUIManagerBase>;
+  virtual ~DataReductionProxyDebugUIManagerBase() {}
+};
+
+}  // namespace data_reduction_proxy
+
+#endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DATA_REDUCTION_PROXY_DEBUG_UI_MANAGER_BASE_H_