Navigation throttle for the Safe Browsing Subresource Filter.

content/public/browser/navigation_handle.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 CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 #define CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_
 
 #include <memory>
 
 #include "content/common/content_export.h"
@@ skipping 107 matching lines @@
   // handlers.
   virtual bool IsExternalProtocol() = 0;
 
   // Navigation control flow --------------------------------------------------
 
   // The net error code if an error happened prior to commit. Otherwise it will
   // be net::OK.
   virtual net::Error GetNetErrorCode() = 0;
 
   // Returns the RenderFrameHost this navigation is taking place in. This can
-  // only be accessed after the navigation is ready to commit.
+  // only be accessed after the navigation starts processing the response.
+  // The RenderFrameHost returned back might not be the final one, if method is

[clamy, 2016/06/24 12:13:38]

So 2 things here:
With PlzNavigate this is the final one.
Without PlzNavigate, the navigation may transfer. In that case, you won't get
the final one before DidFinishNavigation, since ReadyToCommitNavigation will not
be called.

The comment should be rewritten to take this into account.

[melandory, 2016/06/25 01:46:10]

Done.

+  // called before ReadyToCommitNavigation is dispatched.
   virtual RenderFrameHost* GetRenderFrameHost() = 0;
 
   // Whether the navigation happened in the same page. This is only known
   // after the navigation has committed. It is an error to call this method
   // before the navigation has committed.
   virtual bool IsSamePage() = 0;
 
   // Whether the navigation has encountered a server redirect or not.
   virtual bool WasServerRedirect() = 0;
 
@@ skipping 41 matching lines @@
                                  ui::PageTransition transition,
                                  bool is_external_protocol) = 0;
 
   // Simulates the network request being redirected.
   virtual NavigationThrottle::ThrottleCheckResult
   CallWillRedirectRequestForTesting(const GURL& new_url,
                                     bool new_method_is_post,
                                     const GURL& new_referrer_url,
                                     bool new_is_external_protocol) = 0;
 
+  // Simulates that throttle is about to process the response.
+  virtual NavigationThrottle::ThrottleCheckResult
+  CallWillProcessResponseForTesting(RenderFrameHost* render_frame_host) = 0;
+
   // The NavigationData that the embedder returned from
   // ResourceDispatcherHostDelegate::GetNavigationData during commit. This will
   // be a clone of the NavigationData.
   virtual NavigationData* GetNavigationData() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_HANDLE_H_