Add quiet safe browsing interstitial for WebView

chrome/browser/safe_browsing/safe_browsing_blocking_page.h

 // Copyright (c) 2012 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.
 //
 // Classes for managing the SafeBrowsing interstitial pages.
 //
 // When a user is about to visit a page the SafeBrowsing system has deemed to
 // be malicious, either as malware or a phishing page, we show an interstitial
 // page with some options (go back, continue) to give the user a chance to avoid
 // the harmful page.
@@ skipping 65 matching lines @@
   // InterstitialPageDelegate method:
   void OverrideRendererPrefs(content::RendererPreferences* prefs) override;
   content::InterstitialPageDelegate::TypeID GetTypeForTesting() const override;
 
   // Checks the threat type to decide if we should report ThreatDetails.
   static bool ShouldReportThreatDetails(SBThreatType threat_type);
 
  protected:
   friend class SafeBrowsingBlockingPageFactoryImpl;
   friend class SafeBrowsingBlockingPageTest;
+  friend class SafeBrowsingBlockingQuietPageFactoryImpl;
+  friend class SafeBrowsingBlockingQuietPageTest;
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingBlockingPageTest,
                            ProceedThenDontProceed);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingBlockingPageTest,
                            MalwareReportsDisabled);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingBlockingPageTest,
                            MalwareReportsToggling);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingBlockingPageTest,
                            ExtendedReportingNotShownOnSecurePage);
   FRIEND_TEST_ALL_PREFIXES(SafeBrowsingBlockingPageTest,
                            MalwareReportsTransitionDisabled);
@@ skipping 54 matching lines @@
   virtual SafeBrowsingBlockingPage* CreateSafeBrowsingPage(
       BaseUIManager* ui_manager,
       content::WebContents* web_contents,
       const GURL& main_frame_url,
       const SafeBrowsingBlockingPage::UnsafeResourceList& unsafe_resources) = 0;
 };
 
 }  // namespace safe_browsing
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_BLOCKING_PAGE_H_