Revert of PlzNavigate: Enforce 'frame-src' CSP on the browser.

content/browser/frame_host/interstitial_page_navigator_impl.cc

Index: content/browser/frame_host/interstitial_page_navigator_impl.cc
diff --git a/content/browser/frame_host/interstitial_page_navigator_impl.cc b/content/browser/frame_host/interstitial_page_navigator_impl.cc
index 4e41462dfaa4b8bc0951ecad2b075d57c3d8754b..7793a6e48e0fd71160eba3042878d73412d6a9bc 100644
--- a/content/browser/frame_host/interstitial_page_navigator_impl.cc
+++ b/content/browser/frame_host/interstitial_page_navigator_impl.cc
@@ -34,15 +34,15 @@
     const base::TimeTicks& navigation_start) {
   // The interstitial page should only navigate once.
   DCHECK(!render_frame_host->navigation_handle());
-  render_frame_host->SetNavigationHandle(NavigationHandleImpl::Create(
-      url, redirect_chain, render_frame_host->frame_tree_node(),
-      false,                /* is_renderer_initiated */
-      false,                /* is_synchronous */
-      navigation_start,     /* navigation_state */
-      0,                    /* pending_nav_entry_id */
-      false,                /* started_in_context_menu */
-      CSPDisposition::CHECK /* should_check_main_world_csp */
-      ));
+  render_frame_host->SetNavigationHandle(
+      NavigationHandleImpl::Create(url, redirect_chain,
+                                   render_frame_host->frame_tree_node(),
+                                   false,  // is_renderer_initiated
+                                   false,  // is_synchronous
+                                   navigation_start,
+                                   0,      // pending_nav_entry_id
+                                   false)  // started_in_context_menu
+      );
 }
 
 void InterstitialPageNavigatorImpl::DidNavigate(