[subresource_filter] add //chrome level unit test harness

chrome/browser/subresource_filter/chrome_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 CHROME_BROWSER_SUBRESOURCE_FILTER_CHROME_SUBRESOURCE_FILTER_CLIENT_H_
 #define CHROME_BROWSER_SUBRESOURCE_FILTER_CHROME_SUBRESOURCE_FILTER_CLIENT_H_
 
 #include <set>
 #include <string>
 
@@ skipping 58 matching lines @@
 
   // SubresourceFilterClient:
   void ToggleNotificationVisibility(bool visibility) override;
   bool ShouldSuppressActivation(
       content::NavigationHandle* navigation_handle) override;
   void WhitelistByContentSettings(const GURL& url) override;
   void WhitelistInCurrentWebContents(const GURL& url) override;
   subresource_filter::VerifiedRulesetDealer::Handle* GetRulesetDealer()
       override;
 
+  bool did_show_ui_for_navigation() const {
+    return did_show_ui_for_navigation_;
+  }
+
   static void LogAction(SubresourceFilterAction action);
 
  private:
   ContentSetting GetContentSettingForUrl(const GURL& url);
   std::set<std::string> whitelisted_hosts_;
   content::WebContents* web_contents_;
-  bool shown_for_navigation_;
+  bool did_show_ui_for_navigation_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeSubresourceFilterClient);
 };
 
 #endif  // CHROME_BROWSER_SUBRESOURCE_FILTER_CHROME_SUBRESOURCE_FILTER_CLIENT_H_