Stop using CertStore which is not compatible with PlzNavigate.

content/browser/loader/resource_loader.h

Index: content/browser/loader/resource_loader.h
diff --git a/content/browser/loader/resource_loader.h b/content/browser/loader/resource_loader.h
index 6cbb2b3466ea7c6bdb87555a816214b23de78f09..3b0eadaaf1f6149917ea64e461ea211dd676ded6 100644
--- a/content/browser/loader/resource_loader.h
+++ b/content/browser/loader/resource_loader.h
@@ -39,12 +39,10 @@ class CONTENT_EXPORT ResourceLoader : public net::URLRequest::Delegate,
   static void GetSSLStatusForRequest(const GURL& url,
                                      const net::SSLInfo& ssl_info,
                                      int child_id,
-                                     CertStore* cert_store,
                                      SSLStatus* ssl_status);
 
   ResourceLoader(std::unique_ptr<net::URLRequest> request,
                  std::unique_ptr<ResourceHandler> handler,
-                 CertStore* cert_store,
                  ResourceLoaderDelegate* delegate);
   ~ResourceLoader() override;
 
@@ -60,15 +58,6 @@ class CONTENT_EXPORT ResourceLoader : public net::URLRequest::Delegate,
 
   void ClearLoginDelegate();
 
-  // Returns a pointer to the ResourceResponse for a request that is
-  // being transferred to a new consumer. The response is valid between
-  // the time that the request is marked as transferring via
-  // MarkAsTransferring() and the time that the transfer is completed
-  // via CompleteTransfer().
-  ResourceResponse* transferring_response() {
-    return transferring_response_.get();
-  }
-
  private:
   // net::URLRequest::Delegate implementation:
   void OnReceivedRedirect(net::URLRequest* request,
@@ -148,22 +137,12 @@ class CONTENT_EXPORT ResourceLoader : public net::URLRequest::Delegate,
   // which point we'll receive a new ResourceHandler.
   bool is_transferring_;
 
-  // Holds the ResourceResponse for a request that is being transferred
-  // to a new consumer. This member is populated when the request is
-  // marked as transferring via MarkAsTransferring(), and it is cleared
-  // when the transfer is completed via CompleteTransfer().
-  scoped_refptr<ResourceResponse> transferring_response_;
-
   // Instrumentation add to investigate http://crbug.com/503306.
   // TODO(mmenke): Remove once bug is fixed.
   int times_cancelled_before_request_start_;
   bool started_request_;
   int times_cancelled_after_request_start_;
 
-  // Allows tests to use a mock CertStore. The CertStore must outlive
-  // the ResourceLoader.
-  CertStore* cert_store_;
-
   base::WeakPtrFactory<ResourceLoader> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceLoader);