[on-hold][subresource_filter] Add ActivationTracker to track all activated contents

components/subresource_filter/content/browser/subresource_filter_client.h

 // 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_CORE_BROWSER_SUBRESOURCE_FILTER_CLIENT_H_
-#define COMPONENTS_SUBRESOURCE_FILTER_CORE_BROWSER_SUBRESOURCE_FILTER_CLIENT_H_
+#ifndef COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_CLIENT_H_
+#define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_CLIENT_H_
 
 #include "components/subresource_filter/content/browser/verified_ruleset_dealer.h"
 #include "content/public/browser/web_contents.h"
 
 class GURL;
 
 namespace content {
 class NavigationHandle;
 }  // namespace content
 
 namespace subresource_filter {
 
+struct ActivationState;
+
 class SubresourceFilterClient {
  public:
   virtual ~SubresourceFilterClient() = default;
 
   // Changes the visibility of the prompt that informs the user that potentially
   // deceptive content has been blocked on the page according to the passed
   // |visibility| parameter. When |visibility| is set to true, an icon on the
   // right side of the omnibox is displayed. If the user clicks on the icon then
   // a bubble is shown that explains the feature and alalows the user to turn it
   // off.
   virtual void ToggleNotificationVisibility(bool visibility) = 0;
 
   // Returns true if the navigation is in a main frame and the URL is
   // whitelisted from activation via content settings or by the per-tab
   // whitelist.
   virtual bool ShouldSuppressActivation(
       content::NavigationHandle* navigation_handle) = 0;
 
   // Adds |url| to the BLOCKED state via content settings for the current
   // profile.
   virtual void WhitelistByContentSettings(const GURL& url) = 0;
 
   // Adds |url| to a per-WebContents whitelist.
   virtual void WhitelistInCurrentWebContents(const GURL& url) = 0;
 
   virtual VerifiedRulesetDealer::Handle* GetRulesetDealer() = 0;
+
+  // Called when the main frame is activated in this WebContents, and the signal
+  // is send to the renderer.
+  virtual void OnPageActivated(const ActivationState& state) = 0;
 };
 
 }  // namespace subresource_filter
 
-#endif  // COMPONENTS_SUBRESOURCE_FILTER_CORE_BROWSER_SUBRESOURCE_FILTER_CLIENT_H_
+#endif  // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBRESOURCE_FILTER_CLIENT_H_