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

content/common/navigation_params.h

 // 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.
 
 #ifndef CONTENT_COMMON_NAVIGATION_PARAMS_H_
 #define CONTENT_COMMON_NAVIGATION_PARAMS_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 157 matching lines @@
   // TODO(clamy): See if it is possible to reuse this in
   // ResourceMsg_Request_Params.
   BeginNavigationParams();
   BeginNavigationParams(
       std::string headers,
       int load_flags,
       bool has_user_gesture,
       bool skip_service_worker,
       RequestContextType request_context_type,
       blink::WebMixedContentContextType mixed_content_context_type,
+      bool is_form_submission,
       const base::Optional<url::Origin>& initiator_origin);
   BeginNavigationParams(const BeginNavigationParams& other);
   ~BeginNavigationParams();
 
   // Additional HTTP request headers.
   std::string headers;
 
   // net::URLRequest load flags (net::LOAD_NORMAL) by default).
   int load_flags;
 
   // True if the request was user initiated.
   bool has_user_gesture;
 
   // True if the ServiceWorker should be skipped.
   bool skip_service_worker;
 
   // Indicates the request context type.
   RequestContextType request_context_type;
 
   // The mixed content context type for potential mixed content checks.
   blink::WebMixedContentContextType mixed_content_context_type;
 
+  // Whether or not the navigation has been initiated by a form submission.
+  bool is_form_submission;
+
   // See WebSearchableFormData for a description of these.
   GURL searchable_form_url;
   std::string searchable_form_encoding;
 
   // Indicates the initiator of the request. In auxilliary navigations, this is
   // the origin of the document that triggered the navigation. This parameter
   // can be null during browser-initiated navigations.
   base::Optional<url::Origin> initiator_origin;
 
   // If the transition type is a client side redirect, then this holds the URL
@@ skipping 188 matching lines @@
   ~NavigationParams();
 
   CommonNavigationParams common_params;
   StartNavigationParams start_params;
   RequestNavigationParams request_params;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_NAVIGATION_PARAMS_H_