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
new file mode 100644
index 0000000000000000000000000000000000000000..ef7db10274d4e360d0ad696323a9f98865a64143
--- /dev/null
+++ b/components/subresource_filter/content/browser/subresource_filter_navigation_throttle.h
@@ -0,0 +1,48 @@
+// 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

[nasko, 2016/06/28 22:12:36]

"This class is responsible ...". Also, is it only monitoring for redirects?
Based on overriding WillProcessResponse, it is tracking the responses too, isn't
it?

[melandory, 2016/07/01 07:10:49]

Done.

+// happening after Safe Browsing detects that the page which is being load

[nasko, 2016/06/28 22:12:36]

nit: "being loaded"

[melandory, 2016/07/01 07:10:49]

Done.

+// 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_