Navigation throttle for the Safe Browsing Subresource Filter.

components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h

Index: components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h
diff --git a/components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h b/components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h
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index 0000000000000000000000000000000000000000..84b541217d00b3c47b73f602a603fd0f86eaae09
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+++ b/components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h
@@ -0,0 +1,49 @@
+// 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_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_NAVIGATION_THROTTLE_
+#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_NAVIGATION_THROTTLE_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "content/public/browser/navigation_throttle.h"
+#include "url/gurl.h"
+
+namespace content {
+class NavigationHandle;
+}
+
+namespace subresource_filter {
+
+/* The class which is responsible for tracking the redirects, which are

[engedy, 2016/06/23 22:34:18]

nit: //

[melandory, 2016/06/25 01:46:08]

Done.

+ * happening after Safe Browsing detects that the page which is being load
+ * contains deceptive embedded content and appends such redirects to the per-tab
+ * list. After navigation is finished, SubresourceFilterNavigationThrottle
+ * passes information if deceptive embedded content should be filtered. This
+ * throttle is active only for main frame http or https navigations and doesn't
+ * act on subresources, but activates the subresource filter when necessary.
+ */
+class SubresourceFilterNavigationThrottle : public content::NavigationThrottle {
+ public:
+  static std::unique_ptr<content::NavigationThrottle> Create(
+      content::NavigationHandle* handle);
+  ~SubresourceFilterNavigationThrottle() override;
+
+  // content::NavigationThrottle implementation:
+  ThrottleCheckResult WillRedirectRequest() override;
+  ThrottleCheckResult WillProcessResponse() override;
+
+ private:
+  explicit SubresourceFilterNavigationThrottle(
+      content::NavigationHandle* navigation_handle);
+
+  GURL initial_url_;
+
+  DISALLOW_COPY_AND_ASSIGN(SubresourceFilterNavigationThrottle);
+};
+
+}  // namespace subresource_filter
+
+#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_NAVIGATION_THROTTLE_