PlzNavigate: Enforce 'form-action' CSP on the browser-side.

content/browser/frame_host/interstitial_page_navigator_impl.cc

 // Copyright 2013 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 "content/browser/frame_host/interstitial_page_navigator_impl.h"
 
 #include "content/browser/frame_host/interstitial_page_impl.h"
 #include "content/browser/frame_host/navigation_controller_impl.h"
 #include "content/browser/frame_host/navigator_delegate.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
@@ skipping 23 matching lines @@
     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 */
-      false             /* should_bypass_main_world_csp */
+      false,            /* should_bypass_main_world_csp */
+      false             /* is_form_submission */
       ));
 }
 
 void InterstitialPageNavigatorImpl::DidNavigate(
     RenderFrameHostImpl* render_frame_host,
     const FrameHostMsg_DidCommitProvisionalLoad_Params& input_params,
     std::unique_ptr<NavigationHandleImpl> navigation_handle) {
   navigation_handle->DidCommitNavigation(
       input_params, false, GURL(), NAVIGATION_TYPE_NEW_PAGE, render_frame_host);
   navigation_handle.reset();
 
   // TODO(nasko): Move implementation here, but for the time being call out
   // to the interstitial page code.
   interstitial_->DidNavigate(render_frame_host->render_view_host(),
                              input_params);
 }
 
 }  // namespace content