PlzNavigate: stop navigations when opening a document for write

content/browser/frame_host/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/navigator_impl.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 950 matching lines @@
   if (!navigation_request)
     return;
 
   DCHECK_EQ(NavigationRequest::WAITING_FOR_RENDERER_RESPONSE,
             navigation_request->state());
 
   // If the navigation is allowed to proceed, send the request to the IO thread.
   if (proceed)
     navigation_request->BeginNavigation();
   else
-    CancelNavigation(frame_tree_node);
+    CancelNavigation(frame_tree_node, true);
 }
 
 // PlzNavigate
 void NavigatorImpl::OnBeginNavigation(
     FrameTreeNode* frame_tree_node,
     const CommonNavigationParams& common_params,
     const BeginNavigationParams& begin_params) {
   // TODO(clamy): the url sent by the renderer should be validated with
   // FilterURL.
   // This is a renderer-initiated navigation.
   CHECK(IsBrowserSideNavigationEnabled());
   DCHECK(frame_tree_node);
 
   NavigationRequest* ongoing_navigation_request =
       frame_tree_node->navigation_request();
 
   // Client redirects during the initial history navigation of a child frame
   // should take precedence over the history navigation (despite being renderer-
   // initiated).  See https://crbug.com/348447 and https://crbug.com/691168.
   if (ongoing_navigation_request &&
       ongoing_navigation_request->request_params()
           .is_history_navigation_in_new_child) {
     // Preemptively clear this local pointer before deleting the request.
     ongoing_navigation_request = nullptr;
-    frame_tree_node->ResetNavigationRequest(false);
+    frame_tree_node->ResetNavigationRequest(false, true);
   }
 
   // The renderer-initiated navigation request is ignored iff a) there is an
   // ongoing request b) which is browser or user-initiated and c) the renderer
   // request is not user-initiated.
   if (ongoing_navigation_request &&
       (ongoing_navigation_request->browser_initiated() ||
        ongoing_navigation_request->begin_params().has_user_gesture) &&
       !begin_params.has_user_gesture) {
     RenderFrameHost* current_frame_host =
@@ skipping 27 matching lines @@
 
   // For main frames, NavigationHandle will be created after the call to
   // |DidStartMainFrameNavigation|, so it receives the most up to date pending
   // entry from the NavigationController.
   NavigationEntry* pending_entry = controller_->GetPendingEntry();
   navigation_request->CreateNavigationHandle(
       pending_entry ? pending_entry->GetUniqueID() : 0);
   navigation_request->BeginNavigation();
 }
 
+void NavigatorImpl::OnAbortNavigation(FrameTreeNode* frame_tree_node) {
+  NavigationRequest* ongoing_navigation_request =
+      frame_tree_node->navigation_request();
+  if (!ongoing_navigation_request ||
+      ongoing_navigation_request->browser_initiated()) {
+    return;
+  }
+
+  // Abort the renderer-initiated navigation request.
+  CancelNavigation(frame_tree_node, false);
+}
+
 // PlzNavigate
-void NavigatorImpl::CancelNavigation(FrameTreeNode* frame_tree_node) {
+void NavigatorImpl::CancelNavigation(FrameTreeNode* frame_tree_node,
+                                     bool inform_renderer) {
   CHECK(IsBrowserSideNavigationEnabled());
-  frame_tree_node->ResetNavigationRequest(false);
+  frame_tree_node->ResetNavigationRequest(false, inform_renderer);
   if (frame_tree_node->IsMainFrame())
     navigation_data_.reset();
 }
 
 void NavigatorImpl::LogResourceRequestTime(
     base::TimeTicks timestamp, const GURL& url) {
   if (navigation_data_ && navigation_data_->url_ == url) {
     navigation_data_->url_job_start_time_ = timestamp;
     UMA_HISTOGRAM_TIMES(
         "Navigation.TimeToURLJobStart",
@@ skipping 231 matching lines @@
     if (navigation_handle)
       navigation_handle->update_entry_id_for_transfer(entry->GetUniqueID());
 
     controller_->SetPendingEntry(std::move(entry));
     if (delegate_)
       delegate_->NotifyChangedNavigationState(content::INVALIDATE_TYPE_URL);
   }
 }
 
 }  // namespace content