Bring RFH/RVH unit tests closer to reality of how RF/RV are initialized

components/data_reduction_proxy/content/browser/data_reduction_proxy_debug_blocking_page_unittest.cc

 // 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.
 
 #include "components/data_reduction_proxy/content/browser/data_reduction_proxy_debug_blocking_page.h"
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 394 matching lines @@
   controller().LoadURL(GURL(kBypassURL), content::Referrer(),
                        ui::PAGE_TRANSITION_TYPED, std::string());
   int pending_id = controller().GetPendingEntry()->GetUniqueID();
   ShowInterstitial(false, kBypassURL);
   DataReductionProxyDebugBlockingPage* interstitial =
       GetDataReductionProxyDebugBlockingPage();
   ASSERT_TRUE(interstitial);
 
   // Proceed through the 1st interstitial.
   ProceedThroughInterstitial(interstitial);
-  Navigate(kBypassURL, 2, pending_id, true);  // Commit navigation.
+  NavigateCrossSite(kBypassURL, 2, pending_id, true);  // Commit navigation.
   GoBack(true);
 
   // We are back on the first page.
   interstitial = GetDataReductionProxyDebugBlockingPage();
   ASSERT_FALSE(interstitial);
   ASSERT_EQ(2, controller().GetEntryCount());
   EXPECT_EQ(kGoogleURL, controller().GetActiveEntry()->GetURL().spec());
 
   // Navigate forward to the bypassed URL.
   web_contents()->GetController().GoForward();
@@ skipping 31 matching lines @@
   interstitial->interstitial_page()->Proceed();
   interstitial->interstitial_page()->DontProceed();
   base::RunLoop().RunUntilIdle();
 
   // The interstitial should be gone.
   EXPECT_EQ(OK, user_response());
   EXPECT_FALSE(GetDataReductionProxyDebugBlockingPage());
 }
 
 }  // namespace data_reduction_proxy