Remove the is_loading_ field from WebContentsImpl

content/browser/frame_host/render_frame_host_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/render_frame_host_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
@@ skipping 495 matching lines @@
     IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
     IPC_MESSAGE_HANDLER(FrameHostMsg_FrameFocused, OnFrameFocused)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartProvisionalLoad,
                         OnDidStartProvisionalLoad)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailProvisionalLoadWithError,
                         OnDidFailProvisionalLoadWithError)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailLoadWithError,
                         OnDidFailLoadWithError)
     IPC_MESSAGE_HANDLER_GENERIC(FrameHostMsg_DidCommitProvisionalLoad,
                                 OnDidCommitProvisionalLoad(msg))
-    IPC_MESSAGE_HANDLER(FrameHostMsg_DidDropNavigation, OnDidDropNavigation)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateState, OnUpdateState)
     IPC_MESSAGE_HANDLER(FrameHostMsg_OpenURL, OnOpenURL)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DocumentOnLoadCompleted,
                         OnDocumentOnLoadCompleted)
     IPC_MESSAGE_HANDLER(FrameHostMsg_BeforeUnload_ACK, OnBeforeUnloadACK)
     IPC_MESSAGE_HANDLER(FrameHostMsg_SwapOut_ACK, OnSwapOutACK)
     IPC_MESSAGE_HANDLER(FrameHostMsg_ContextMenu, OnContextMenu)
     IPC_MESSAGE_HANDLER(FrameHostMsg_JavaScriptExecuteResponse,
                         OnJavaScriptExecuteResponse)
     IPC_MESSAGE_HANDLER(FrameHostMsg_VisualStateResponse,
@@ skipping 493 matching lines @@
       !validated_params.was_within_same_page) {
     RenderWidgetHostImpl::From(GetView()->GetRenderWidgetHost())
         ->StartNewContentRenderingTimeout();
   }
 
   // PlzNavigate
   if (IsBrowserSideNavigationEnabled())
     pending_commit_ = false;
 }
 
-void RenderFrameHostImpl::OnDidDropNavigation() {
-  // At the end of Navigate(), the FrameTreeNode's DidStartLoading is called to
-  // force the spinner to start, even if the renderer didn't yet begin the load.
-  // If it turns out that the renderer dropped the navigation, the spinner needs
-  // to be turned off.
-  frame_tree_node_->DidStopLoading();
-  navigation_handle_.reset();
-}
-
 void RenderFrameHostImpl::OnUpdateState(const PageState& state) {
   // TODO(creis): Verify the state's ISN matches the last committed FNE.
 
   // Without this check, the renderer can trick the browser into using
   // filenames it can't access in a future session restore.
   // TODO(creis): Move CanAccessFilesOfPageState to RenderFrameHostImpl.
   if (!render_view_host_->CanAccessFilesOfPageState(state)) {
     bad_message::ReceivedBadMessage(
         GetProcess(), bad_message::RFH_CAN_ACCESS_FILES_OF_PAGE_STATE);
     return;
@@ skipping 623 matching lines @@
     delegate_->EnterFullscreenMode(GetLastCommittedURL().GetOrigin());
   else
     delegate_->ExitFullscreenMode();
 
   // The previous call might change the fullscreen state. We need to make sure
   // the renderer is aware of that, which is done via the resize message.
   render_view_host_->GetWidget()->WasResized();
 }
 
 void RenderFrameHostImpl::OnDidStartLoading(bool to_different_document) {
-  // Any main frame load to a new document should reset the load since it will
-  // replace the current page and any frames.
-  if (to_different_document && !GetParent())
-    is_loading_ = false;
-
-  // This method should never be called when the frame is loading.
-  // Unfortunately, it can happen if a history navigation happens during a
-  // BeforeUnload or Unload event.
-  // TODO(fdegans): Change this to a DCHECK after LoadEventProgress has been
-  // refactored in Blink. See crbug.com/466089
-  if (is_loading_) {
-    LOG(WARNING) << "OnDidStartLoading was called twice.";
-    return;
-  }
-
   frame_tree_node_->DidStartLoading(to_different_document);
   is_loading_ = true;
 }
 
 void RenderFrameHostImpl::OnDidStopLoading() {
   // This method should never be called when the frame is not loading.
   // Unfortunately, it can happen if a history navigation happens during a
   // BeforeUnload or Unload event.
   // TODO(fdegans): Change this to a DCHECK after LoadEventProgress has been
   // refactored in Blink. See crbug.com/466089
@@ skipping 176 matching lines @@
   // message will be received asynchronously from the UI of the browser. But the
   // throbber needs to be kept in sync with what's happening in the UI. For
   // example, the throbber will start immediately when the user navigates even
   // if the renderer is delayed. There is also an issue with the throbber
   // starting because the WebUI (which controls whether the favicon is
   // displayed) happens synchronously. If the start loading messages was
   // asynchronous, then the default favicon would flash in.
   //
   // Blink doesn't send throb notifications for JavaScript URLs, so it is not
   // done here either.
-  if (!common_params.url.SchemeIs(url::kJavaScriptScheme))
+  if (!common_params.url.SchemeIs(url::kJavaScriptScheme)) {
     frame_tree_node_->DidStartLoading(true);
+    is_loading_ = true;
+  }
 }
 
 void RenderFrameHostImpl::NavigateToInterstitialURL(const GURL& data_url) {
   DCHECK(data_url.SchemeIs(url::kDataScheme));
   CommonNavigationParams common_params(
       data_url, Referrer(), ui::PAGE_TRANSITION_LINK,
       FrameMsg_Navigate_Type::NORMAL, false, false, base::TimeTicks::Now(),
       FrameMsg_UILoadMetricsReportType::NO_REPORT, GURL(), GURL(), LOFI_OFF,
       base::TimeTicks::Now());
   if (IsBrowserSideNavigationEnabled()) {
@@ skipping 320 matching lines @@
 
 const image_downloader::ImageDownloaderPtr&
 RenderFrameHostImpl::GetMojoImageDownloader() {
   if (!mojo_image_downloader_.get() && GetServiceRegistry()) {
     GetServiceRegistry()->ConnectToRemoteService(
         mojo::GetProxy(&mojo_image_downloader_));
   }
   return mojo_image_downloader_;
 }
 
+void RenderFrameHostImpl::ResetLoadingState() {
+  if (is_loading())
+    OnDidStopLoading();
+}
+
 bool RenderFrameHostImpl::IsSameSiteInstance(
     RenderFrameHostImpl* other_render_frame_host) {
   // As a sanity check, make sure the frame belongs to the same BrowserContext.
   CHECK_EQ(GetSiteInstance()->GetBrowserContext(),
            other_render_frame_host->GetSiteInstance()->GetBrowserContext());
   return GetSiteInstance() == other_render_frame_host->GetSiteInstance();
 }
 
 void RenderFrameHostImpl::SetAccessibilityMode(AccessibilityMode mode) {
   Send(new FrameMsg_SetAccessibilityMode(routing_id_, mode));
@@ skipping 283 matching lines @@
   *dst = src;
 
   if (src.routing_id != -1)
     dst->tree_id = RoutingIDToAXTreeID(src.routing_id);
 
   if (src.parent_routing_id != -1)
     dst->parent_tree_id = RoutingIDToAXTreeID(src.parent_routing_id);
 }
 
 }  // namespace content