Reland #1 Remove the is_loading_ field from WebContentsImpl

content/browser/frame_host/render_frame_host_manager.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/render_frame_host_manager.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 419 matching lines @@
   // navigations can just continue and wait to run the unload handler (by
   // swapping out) when the new navigation commits.
   CHECK(cross_site_transferring_request);
 
   // A transfer should only have come from our pending or current RFH.
   // TODO(creis): We need to handle the case that the pending RFH has changed
   // in the mean time, while this was being posted from the IO thread.  We
   // should probably cancel the request in that case.
   DCHECK(pending_render_frame_host == pending_render_frame_host_.get() ||
          pending_render_frame_host == render_frame_host_.get());
+  DCHECK(frame_tree_node_->IsLoading());
 
   // Store the transferring request so that we can release it if the transfer
   // navigation matches.
   cross_site_transferring_request_ = std::move(cross_site_transferring_request);
 
   // Store the NavigationHandle to give it to the appropriate RenderFrameHost
   // after it started navigating.
   transfer_navigation_handle_ =
       pending_render_frame_host->PassNavigationHandleOwnership();
   DCHECK(transfer_navigation_handle_);
 
+  // Set the transferring RenderFrameHost as not loading, so that it does not
+  // emit a DidStopLoading notification if it is destroyed when creating the
+  // new navigating RenderFrameHost.
+  pending_render_frame_host->set_is_loading(false);
+
   // Sanity check that the params are for the correct frame and process.
   // These should match the RenderFrameHost that made the request.
   // If it started as a cross-process navigation via OpenURL, this is the
   // pending one.  If it wasn't cross-process until the transfer, this is
   // the current one.
   int render_frame_id = pending_render_frame_host_
                             ? pending_render_frame_host_->GetRoutingID()
                             : render_frame_host_->GetRoutingID();
   DCHECK_EQ(render_frame_id, pending_render_frame_host->GetRoutingID());
   int process_id = pending_render_frame_host_ ?
@@ skipping 12 matching lines @@
       pending_render_frame_host, transfer_url, rest_of_chain, referrer,
       page_transition, global_request_id, should_replace_current_entry);
 
   // The transferring request was only needed during the RequestTransferURL
   // call, so it is safe to clear at this point.
   cross_site_transferring_request_.reset();
 
   // If the navigation continued, the NavigationHandle should have been
   // transfered to a RenderFrameHost. In the other cases, it should be cleared.
   transfer_navigation_handle_.reset();
+
+  // If the navigation in the new renderer did not start, inform the
+  // FrameTreeNode that it stopped loading.
+  if (!frame_tree_node_->IsLoading())
+    frame_tree_node_->DidStopLoading();
 }
 
 void RenderFrameHostManager::DidNavigateFrame(
     RenderFrameHostImpl* render_frame_host,
     bool was_caused_by_user_gesture) {
   CommitPendingIfNecessary(render_frame_host, was_caused_by_user_gesture);
 
   // Make sure any dynamic changes to this frame's sandbox flags that were made
   // prior to navigation take effect.
   CommitPendingSandboxFlags();
@@ skipping 412 matching lines @@
   if (notify_webui_of_rv_creation && GetNavigatingWebUI())
     GetNavigatingWebUI()->RenderViewCreated(navigation_rfh->render_view_host());
 
   return navigation_rfh;
 }
 
 // PlzNavigate
 void RenderFrameHostManager::CleanUpNavigation() {
   CHECK(IsBrowserSideNavigationEnabled());
   render_frame_host_->ClearPendingWebUI();
-  if (speculative_render_frame_host_)
+  if (speculative_render_frame_host_) {
+    bool was_loading = speculative_render_frame_host_->is_loading();
     DiscardUnusedFrame(UnsetSpeculativeRenderFrameHost());
+    if (was_loading)
+      frame_tree_node_->DidStopLoading();
+  }
 }
 
 // PlzNavigate
 scoped_ptr<RenderFrameHostImpl>
 RenderFrameHostManager::UnsetSpeculativeRenderFrameHost() {
   CHECK(IsBrowserSideNavigationEnabled());
   speculative_render_frame_host_->GetProcess()->RemovePendingView();
   return std::move(speculative_render_frame_host_);
 }
 
@@ skipping 1068 matching lines @@
   if (!delegate_->IsHidden() && new_rfh_has_view) {
     // In most cases, we need to show the new view.
     render_frame_host_->GetView()->Show();
   }
   if (!new_rfh_has_view) {
     // If the view is gone, then this RenderViewHost died while it was hidden.
     // We ignored the RenderProcessGone call at the time, so we should send it
     // now to make sure the sad tab shows up, etc.
     DCHECK(!render_frame_host_->IsRenderFrameLive());
     DCHECK(!render_frame_host_->render_view_host()->IsRenderViewLive());
+    render_frame_host_->ResetLoadingState();
     delegate_->RenderProcessGoneFromRenderManager(
         render_frame_host_->render_view_host());
   }
 
   // For top-level frames, also hide the old RenderViewHost's view.
   // TODO(creis): As long as show/hide are on RVH, we don't want to hide on
   // subframe navigations or we will interfere with the top-level frame.
   if (is_main_frame &&
       old_render_frame_host->render_view_host()->GetWidget()->GetView()) {
     old_render_frame_host->render_view_host()->GetWidget()->GetView()->Hide();
@@ skipping 231 matching lines @@
       render_frame_host_->pending_web_ui()->RenderViewCreated(
           render_frame_host_->render_view_host());
     }
   }
 }
 
 void RenderFrameHostManager::CancelPending() {
   TRACE_EVENT1("navigation", "RenderFrameHostManager::CancelPending",
                "FrameTreeNode id", frame_tree_node_->frame_tree_node_id());
   render_frame_host_->ClearPendingWebUI();
+
+  bool pending_was_loading = pending_render_frame_host_->is_loading();
   DiscardUnusedFrame(UnsetPendingRenderFrameHost());
+  if (pending_was_loading)
+    frame_tree_node_->DidStopLoading();
 }
 
 scoped_ptr<RenderFrameHostImpl>
 RenderFrameHostManager::UnsetPendingRenderFrameHost() {
   scoped_ptr<RenderFrameHostImpl> pending_render_frame_host =
       std::move(pending_render_frame_host_);
 
   RenderFrameDevToolsAgentHost::OnCancelPendingNavigation(
       pending_render_frame_host.get(),
       render_frame_host_.get());
@@ skipping 217 matching lines @@
 int RenderFrameHostManager::GetOpenerRoutingID(SiteInstance* instance) {
   if (!frame_tree_node_->opener())
     return MSG_ROUTING_NONE;
 
   return frame_tree_node_->opener()
       ->render_manager()
       ->GetRoutingIdForSiteInstance(instance);
 }
 
 }  // namespace content