Remove usage of HostZoomMap from c/b/loader via ReadyToCommitNavigation

chrome/browser/previews/previews_infobar_tab_helper_unittest.cc

 // Copyright 2016 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 "chrome/browser/previews/previews_infobar_tab_helper.h"
 
 #include <memory>
 #include <string>
 
 #include "base/strings/stringprintf.h"
@@ skipping 17 matching lines @@
 
 class PreviewsInfoBarTabHelperUnitTest
     : public ChromeRenderViewHostTestHarness {
  protected:
   void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
     InfoBarService::CreateForWebContents(web_contents());
     PreviewsInfoBarTabHelper::CreateForWebContents(web_contents());
     test_handle_ = content::NavigationHandle::CreateNavigationHandleForTesting(
         GURL(kTestUrl), main_rfh());
+    content::RenderFrameHostTester::For(main_rfh())
+        ->InitializeRenderFrameIfNeeded();
 
     drp_test_context_ =
         data_reduction_proxy::DataReductionProxyTestContext::Builder()
             .WithMockConfig()
             .SkipSettingsInitialization()
             .Build();
 
     auto* data_reduction_proxy_settings =
         DataReductionProxyChromeSettingsFactory::GetForBrowserContext(
             web_contents()->GetBrowserContext());
@@ skipping 47 matching lines @@
   InfoBarService* infobar_service =
       InfoBarService::FromWebContents(web_contents());
   EXPECT_EQ(1U, infobar_service->infobar_count());
   EXPECT_TRUE(infobar_tab_helper->displayed_preview_infobar());
 
   // Navigate to reset the displayed state.
   content::WebContentsTester::For(web_contents())
       ->NavigateAndCommit(GURL(kTestUrl));
   EXPECT_FALSE(infobar_tab_helper->displayed_preview_infobar());
 }