Make UnsafeResource hold a WebContents getter instead of RenderFrame ids

chrome/browser/renderer_host/data_reduction_proxy_resource_throttle_android.h

 // Copyright 2015 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_RENDERER_HOST_DATA_REDUCTION_PROXY_RESOURCE_THROTTLE_ANDROID_H_
 #define CHROME_BROWSER_RENDERER_HOST_DATA_REDUCTION_PROXY_RESOURCE_THROTTLE_ANDROID_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 68 matching lines @@
   void OnBlockingPageComplete(bool proceed);
 
   // Returns the threat type.
   safe_browsing::SBThreatType CheckUrl();
 
   // Starts displaying the safe browsing interstitial page if it is not
   // prerendering. Called on the UI thread.
   static void StartDisplayingBlockingPage(
       const base::WeakPtr<DataReductionProxyResourceThrottle>& throttle,
       scoped_refptr<safe_browsing::SafeBrowsingUIManager> ui_manager,
-      const safe_browsing::SafeBrowsingUIManager::UnsafeResource& resource);
+      const safe_browsing::SafeBrowsingUIManager::UnsafeResource& resource,
+      int child_id,
+      int render_frame_id);
 
   // Resumes the request, by continuing the deferred action (either starting the
   // request, or following a redirect).
   void ResumeRequest();
 
   State state_;
 
   // The redirect chain for this resource.
   std::vector<GURL> redirect_urls_;
 
   scoped_refptr<safe_browsing::SafeBrowsingService> safe_browsing_;
   net::URLRequest* request_;
   const bool is_subresource_;
   const bool is_subframe_;
 
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyResourceThrottle);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_DATA_REDUCTION_PROXY_RESOURCE_THROTTLE_ANDROID_H_