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

content/browser/frame_host/navigation_request.cc

 // Copyright 2014 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/navigation_request.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "content/browser/appcache/appcache_navigation_handle.h"
@@ skipping 200 matching lines @@
       frame_entry, request_body, dest_url, dest_referrer, navigation_type,
       previews_state, navigation_start);
 
   std::unique_ptr<NavigationRequest> navigation_request(new NavigationRequest(
       frame_tree_node, common_params,
       BeginNavigationParams(entry.extra_headers(), net::LOAD_NORMAL,
                             false,  // has_user_gestures
                             false,  // skip_service_worker
                             REQUEST_CONTEXT_TYPE_LOCATION,
                             blink::WebMixedContentContextType::Blockable,
+                            false,  // is_form_submission
                             initiator),
       entry.ConstructRequestNavigationParams(
           frame_entry, common_params.url, common_params.method,
           is_history_navigation_in_new_child,
           entry.GetSubframeUniqueNames(frame_tree_node),
           frame_tree_node->has_committed_real_load(),
           controller->GetPendingEntryIndex() == -1,
           controller->GetIndexOfEntry(&entry),
           controller->GetLastCommittedEntryIndex(),
           controller->GetEntryCount()),
@@ skipping 158 matching lines @@
   redirect_chain.push_back(common_params_.url);
 
   std::unique_ptr<NavigationHandleImpl> navigation_handle =
       NavigationHandleImpl::Create(common_params_.url, redirect_chain,
                                    frame_tree_node_, !browser_initiated_,
                                    FrameMsg_Navigate_Type::IsSameDocument(
                                        common_params_.navigation_type),
                                    common_params_.navigation_start,
                                    pending_nav_entry_id,
                                    false,  // started_in_context_menu
-                                   common_params_.should_bypass_main_world_csp);
+                                   common_params_.should_bypass_main_world_csp,
+                                   begin_params_.is_form_submission);
 
   if (!frame_tree_node->navigation_request()) {
     // A callback could have cancelled this request synchronously in which case
     // |this| is deleted.
     return;
   }
 
   navigation_handle_ = std::move(navigation_handle);
 
   if (!begin_params_.searchable_form_url.is_empty()) {
@@ skipping 362 matching lines @@
   DCHECK_EQ(request_params_.has_user_gesture, begin_params_.has_user_gesture);
 
   render_frame_host->CommitNavigation(response_.get(), std::move(body_),
                                       common_params_, request_params_,
                                       is_view_source_);
 
   frame_tree_node_->ResetNavigationRequest(true);
 }
 
 }  // namespace content