Skeleton of the Safe Browsing Subresource Filter.

components/subresource_filter/content/browser/content_subresource_filter_driver.h

Index: components/subresource_filter/content/browser/content_subresource_filter_driver.h
diff --git a/components/subresource_filter/content/browser/content_subresource_filter_driver.h b/components/subresource_filter/content/browser/content_subresource_filter_driver.h
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+// 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_CONTENT_SUBRESOURCE_FILTER_DRIVER_H_
+#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_CONTENT_SUBRESOURCE_FILTER_DRIVER_H_
+
+#include "base/macros.h"
+#include "components/subresource_filter/core/common/activation_state.h"
+
+namespace content {
+class RenderFrameHost;
+}  // namespace content
+
+namespace subresource_filter {
+
+// The content-layer-specific driver for the subresource filter component. There
+// is one instance per RenderFrameHost.
+class ContentSubresourceFilterDriver {
+ public:
+  explicit ContentSubresourceFilterDriver(
+      content::RenderFrameHost* render_frame_host);
+  ~ContentSubresourceFilterDriver();
+
+  // Instructs the agent on the renderer to set up the subresource filter for
+  // the currently ongoing provisional document load in the frame.
+  void ActivateForProvisionalLoad(ActivationState activation_state);
+
+ private:
+  // The RenderFrameHost that this driver belongs to.
+  content::RenderFrameHost* render_frame_host_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContentSubresourceFilterDriver);
+};
+
+}  // namespace subresource_filter
+
+#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_CONTENT_SUBRESOURCE_FILTER_DRIVER_H_