PlzNavigate: stop navigations when opening a document for write

content/renderer/render_frame_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/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1553 matching lines @@
     IPC_MESSAGE_HANDLER(FrameMsg_CommitNavigation, OnCommitNavigation)
     IPC_MESSAGE_HANDLER(FrameMsg_DidUpdateSandboxFlags, OnDidUpdateSandboxFlags)
     IPC_MESSAGE_HANDLER(FrameMsg_SetFrameOwnerProperties,
                         OnSetFrameOwnerProperties)
     IPC_MESSAGE_HANDLER(FrameMsg_AdvanceFocus, OnAdvanceFocus)
     IPC_MESSAGE_HANDLER(FrameMsg_SetFocusedFrame, OnSetFocusedFrame)
     IPC_MESSAGE_HANDLER(FrameMsg_SetTextTrackSettings,
                         OnTextTrackSettingsChanged)
     IPC_MESSAGE_HANDLER(FrameMsg_PostMessageEvent, OnPostMessageEvent)
     IPC_MESSAGE_HANDLER(FrameMsg_FailedNavigation, OnFailedNavigation)
+    IPC_MESSAGE_HANDLER(FrameMsg_DroppedNavigation, OnDroppedNavigation)
     IPC_MESSAGE_HANDLER(FrameMsg_GetSavableResourceLinks,
                         OnGetSavableResourceLinks)
     IPC_MESSAGE_HANDLER(FrameMsg_GetSerializedHtmlWithLocalLinks,
                         OnGetSerializedHtmlWithLocalLinks)
     IPC_MESSAGE_HANDLER(FrameMsg_SerializeAsMHTML, OnSerializeAsMHTML)
     IPC_MESSAGE_HANDLER(FrameMsg_Find, OnFind)
     IPC_MESSAGE_HANDLER(FrameMsg_ClearActiveFindMatch, OnClearActiveFindMatch)
     IPC_MESSAGE_HANDLER(FrameMsg_StopFinding, OnStopFinding)
     IPC_MESSAGE_HANDLER(FrameMsg_EnableViewSourceMode, OnEnableViewSourceMode)
     IPC_MESSAGE_HANDLER(FrameMsg_SuppressFurtherDialogs,
@@ skipping 2462 matching lines @@
 
 void RenderFrameImpl::dispatchLoad() {
   Send(new FrameHostMsg_DispatchLoad(routing_id_));
 }
 
 blink::WebEffectiveConnectionType
 RenderFrameImpl::getEffectiveConnectionType() {
   return effective_connection_type_;
 }
 
+void RenderFrameImpl::abortClientNavigation() {
+  Send(new FrameHostMsg_AbortNavigation(routing_id_));
+}
+
 void RenderFrameImpl::didChangeSelection(bool is_empty_selection) {
   if (!GetRenderWidget()->input_handler().handling_input_event() &&
       !handling_select_range_)
     return;
 
   if (is_empty_selection)
     selection_text_.clear();
 
   // UpdateTextInputState should be called before SyncSelectionIfRequired.
   // UpdateTextInputState may send TextInputStateChanged to notify the focus
@@ skipping 1188 matching lines @@
   // provisionalDataSource(), LoadNavigationErrorPage wasn't called, so do it
   // now.
   if (request_params.nav_entry_id != 0 || !had_provisional_data_source) {
     LoadNavigationErrorPage(failed_request, error, replace,
                             history_entry.get());
   }
 
   browser_side_navigation_pending_ = false;
 }
 
+void RenderFrameImpl::OnDroppedNavigation(int navigation_id) {
+  // Check that the navigation dropped was the last one sent to the browser
+  // process. If not, do nothing as the browser process still has some more
+  // navigations to process.
+  if (navigation_id != navigation_id_)
+    return;
+  browser_side_navigation_pending_ = false;
+  frame_->clientDroppedNavigation();
+}
+
 WebNavigationPolicy RenderFrameImpl::decidePolicyForNavigation(
     const NavigationPolicyInfo& info) {
   // A content initiated navigation may have originated from a link-click,
   // script, drag-n-drop operation, etc.
   // info.extraData is only non-null if this is a redirect. Use the extraData
   // initiation information for redirects, and check pending_navigation_params_
   // otherwise.
   bool is_content_initiated =
       info.extraData
           ? static_cast<DocumentState*>(info.extraData)
@@ skipping 1053 matching lines @@
                     net::LOAD_ONLY_FROM_CACHE | net::LOAD_DISABLE_CACHE);
     load_flags |= net::LOAD_BYPASS_CACHE;
   }
   BeginNavigationParams begin_navigation_params(
       GetWebURLRequestHeaders(info.urlRequest), load_flags,
       info.urlRequest.hasUserGesture(),
       info.urlRequest.getServiceWorkerMode() !=
           blink::WebURLRequest::ServiceWorkerMode::All,
       GetRequestContextTypeForWebURLRequest(info.urlRequest),
       GetMixedContentContextTypeForWebURLRequest(info.urlRequest),
-      initiator_origin);
+      initiator_origin, ++navigation_id_);
 
   if (!info.form.isNull()) {
     WebSearchableFormData web_searchable_form_data(info.form);
     begin_navigation_params.searchable_form_url =
         web_searchable_form_data.url();
     begin_navigation_params.searchable_form_encoding =
         web_searchable_form_data.encoding().utf8();
   }
 
   if (info.isClientRedirect)
@@ skipping 545 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content