Remove RFHM::GetNavigatingWebUI() and RFHM::web_ui().

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 <algorithm>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 200 matching lines @@
     RenderViewHostDelegate* render_view_delegate,
     RenderWidgetHostDelegate* render_widget_delegate,
     Delegate* delegate)
     : frame_tree_node_(frame_tree_node),
       delegate_(delegate),
       render_frame_delegate_(render_frame_delegate),
       render_view_delegate_(render_view_delegate),
       render_widget_delegate_(render_widget_delegate),
       proxy_hosts_(new RenderFrameProxyHostMap(this)),
       interstitial_page_(nullptr),
-      current_web_ui_is_navigating_(false),
       weak_factory_(this) {
   DCHECK(frame_tree_node_);
 }
 
 RenderFrameHostManager::~RenderFrameHostManager() {
   if (pending_render_frame_host_) {
     scoped_ptr<RenderFrameHostImpl> relic = UnsetPendingRenderFrameHost();
     ShutdownProxiesIfLastActiveFrameInSiteInstance(relic.get());
   }
 
@@ skipping 44 matching lines @@
     return nullptr;
   return render_frame_host_->render_view_host();
 }
 
 RenderViewHostImpl* RenderFrameHostManager::pending_render_view_host() const {
   if (!pending_render_frame_host_)
     return nullptr;
   return pending_render_frame_host_->render_view_host();
 }
 
-WebUIImpl* RenderFrameHostManager::GetNavigatingWebUI() const {
-  if (current_web_ui_is_navigating_)
-    return render_frame_host_->web_ui();
-
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kEnableBrowserSideNavigation)) {
-    if (speculative_render_frame_host_)
-      return speculative_render_frame_host_->web_ui();
-  } else {
-    if (pending_render_frame_host_)
-      return pending_render_frame_host_->web_ui();
-  }
-  return nullptr;
-}
-
 RenderWidgetHostView* RenderFrameHostManager::GetRenderWidgetHostView() const {
   if (interstitial_page_)
     return interstitial_page_->GetView();
   if (render_frame_host_)
     return render_frame_host_->GetView();
   return nullptr;
 }
 
 bool RenderFrameHostManager::ForInnerDelegate() {
   return delegate_->GetOuterDelegateFrameTreeNodeID() !=
@@ skipping 96 matching lines @@
     // site that is handled via Mojo, then Mojo WebUI code in //chrome will
     // add a service to this RFH's ServiceRegistry).
     dest_render_frame_host->SetUpMojoIfNeeded();
 
     // Recreate the opener chain.
     CreateOpenerProxies(dest_render_frame_host->GetSiteInstance(),
                         frame_tree_node_);
     if (!InitRenderView(dest_render_frame_host->render_view_host(), nullptr))
       return nullptr;
 
-    if (GetNavigatingWebUI()) {
-      GetNavigatingWebUI()->RenderViewCreated(
+    if (dest_render_frame_host->web_ui()) {
+      dest_render_frame_host->web_ui()->RenderViewCreated(
           dest_render_frame_host->render_view_host());
     }
 
     // Now that we've created a new renderer, be sure to hide it if it isn't
     // our primary one.  Otherwise, we might crash if we try to call Show()
     // on it later.
     if (dest_render_frame_host != render_frame_host_) {
       if (dest_render_frame_host->GetView())
         dest_render_frame_host->GetView()->Hide();
     } else {
@@ skipping 233 matching lines @@
 
   // Make sure any dynamic changes to this frame's sandbox flags that were made
   // prior to navigation take effect.
   CommitPendingSandboxFlags();
 }
 
 void RenderFrameHostManager::CommitPendingIfNecessary(
     RenderFrameHostImpl* render_frame_host,
     bool was_caused_by_user_gesture) {
   if (!pending_render_frame_host_ && !speculative_render_frame_host_) {
-    DCHECK(!current_web_ui_is_navigating_ || render_frame_host_->web_ui());
 
     // We should only hear this from our current renderer.
     DCHECK_EQ(render_frame_host_, render_frame_host);
 
-    // A commit is required if there is a navigating WebUI, even without a
-    // pending or speculative RenderFrameHost.
-    if (GetNavigatingWebUI())
+    // If the current RenderFrameHost has a WebUI it must be committed.
+    // Note: if one tries to move same-site commit logic into RenderFrameHost
+    // itself, mind that the focus setting logic inside CommitPending also needs
+    // to be moved there.
+    if (render_frame_host_->web_ui())
       CommitPending();
     return;
   }
 
   if (render_frame_host == pending_render_frame_host_ ||
       render_frame_host == speculative_render_frame_host_) {
     // The pending cross-process navigation completed, so show the renderer.
     CommitPending();
   } else if (render_frame_host == render_frame_host_) {
     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
@@ skipping 358 matching lines @@
       DCHECK(success);
     }
 
     bool changed_web_ui = speculative_render_frame_host_->UpdateWebUI(
         request.common_params().url, request.bindings());
     if (changed_web_ui && speculative_render_frame_host_->web_ui()) {
       speculative_render_frame_host_->web_ui()->RenderViewCreated(
           speculative_render_frame_host_->render_view_host());
     }
     DCHECK(speculative_render_frame_host_);
-    DCHECK_EQ(GetNavigatingWebUI(), speculative_render_frame_host_->web_ui());
 
     navigation_rfh = speculative_render_frame_host_.get();
 
     // Check if our current RFH is live.
     if (!render_frame_host_->IsRenderFrameLive()) {
       // The current RFH is not live.  There's no reason to sit around with a
       // sad tab or a newly created RFH while we wait for the navigation to
       // complete. Just switch to the speculative RFH now and go back to normal.
       // (Note that we don't care about on{before}unload handlers if the current
       // RFH isn't live.)
       CommitPending();
     }
-    DCHECK(!current_web_ui_is_navigating_);
   }
   DCHECK(navigation_rfh &&
          (navigation_rfh == render_frame_host_.get() ||
           navigation_rfh == speculative_render_frame_host_.get()));
 
   // If the RenderFrame that needs to navigate is not live (its process was just
   // created or has crashed), initialize it.
   if (!navigation_rfh->IsRenderFrameLive()) {
     // Recreate the opener chain.
     CreateOpenerProxies(navigation_rfh->GetSiteInstance(), frame_tree_node_);
     if (!InitRenderView(navigation_rfh->render_view_host(), nullptr))
       return nullptr;
 
-    if (GetNavigatingWebUI()) {
-      GetNavigatingWebUI()->RenderViewCreated(
+    if (navigation_rfh->web_ui()) {
+      navigation_rfh->web_ui()->RenderViewCreated(
           navigation_rfh->render_view_host());
     }
 
     if (navigation_rfh == render_frame_host_) {
       // TODO(nasko): This is a very ugly hack. The Chrome extensions process
       // manager still uses NotificationService and expects to see a
       // RenderViewHost changed notification after WebContents and
       // RenderFrameHostManager are completely initialized. This should be
       // removed once the process manager moves away from NotificationService.
       // See https://crbug.com/462682.
       delegate_->NotifyMainFrameSwappedFromRenderManager(
           nullptr, render_frame_host_->render_view_host());
     }
   }
 
   return navigation_rfh;
 }
 
 // PlzNavigate
 void RenderFrameHostManager::CleanUpNavigation() {
   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableBrowserSideNavigation));
-  // TODO(carlosk): the discarding of the current RFH WebUI and the cleanup of
-  // the speculative RFH should not always happen together.
-  current_web_ui_is_navigating_ = false;
   if (speculative_render_frame_host_)
     DiscardUnusedFrame(UnsetSpeculativeRenderFrameHost());
 }
 
 // PlzNavigate
 scoped_ptr<RenderFrameHostImpl>
 RenderFrameHostManager::UnsetSpeculativeRenderFrameHost() {
   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableBrowserSideNavigation));
   speculative_render_frame_host_->GetProcess()->RemovePendingView();
@@ skipping 605 matching lines @@
       render_widget_delegate_, frame_tree, frame_tree_node_, frame_routing_id,
       widget_routing_id, flags);
 }
 
 // PlzNavigate
 bool RenderFrameHostManager::CreateSpeculativeRenderFrameHost(
     SiteInstance* old_instance,
     SiteInstance* new_instance) {
   CHECK(new_instance);
   CHECK_NE(old_instance, new_instance);
-  CHECK(!current_web_ui_is_navigating_);
 
   // The process for the new SiteInstance may (if we're sharing a process with
   // another host that already initialized it) or may not (we have our own
   // process or the existing process crashed) have been initialized. Calling
   // Init multiple times will be ignored, so this is safe.
   if (!new_instance->GetProcess()->Init())
     return false;
 
   CreateProxiesForNewRenderFrameHost(old_instance, new_instance);
 
@@ skipping 334 matching lines @@
 void RenderFrameHostManager::CommitPending() {
   TRACE_EVENT1("navigation", "RenderFrameHostManager::CommitPending",
                "FrameTreeNode id", frame_tree_node_->frame_tree_node_id());
   // First check whether we're going to want to focus the location bar after
   // this commit.  We do this now because the navigation hasn't formally
   // committed yet, so if we've already cleared the pending WebUI the call chain
   // this triggers won't be able to figure out what's going on.
   bool will_focus_location_bar = delegate_->FocusLocationBarByDefault();
 
   if (!pending_render_frame_host_ && !speculative_render_frame_host_) {
-    DCHECK_EQ(current_web_ui_is_navigating_, !!render_frame_host_->web_ui());
-    current_web_ui_is_navigating_ = false;
     // If there's no pending/speculative RenderFrameHost then the current
     // RenderFrameHost is committing.
     if (will_focus_location_bar)
       delegate_->SetFocusToLocationBar(false);
     return;
   }
 
   // Remember if the page was focused so we can focus the new renderer in
   // that case.
   bool focus_render_view = !will_focus_location_bar &&
@@ skipping 181 matching lines @@
   if (new_instance.get() != current_instance) {
     TRACE_EVENT_INSTANT2(
         "navigation",
         "RenderFrameHostManager::UpdateStateForNavigate:New SiteInstance",
         TRACE_EVENT_SCOPE_THREAD,
         "current_instance id", current_instance->GetId(),
         "new_instance id", new_instance->GetId());
 
     // New SiteInstance: create a pending RFH to navigate.
 
-    current_web_ui_is_navigating_ = false;
     CreatePendingRenderFrameHost(current_instance, new_instance.get());
     DCHECK(pending_render_frame_host_);
     if (!pending_render_frame_host_)
       return nullptr;
 
     pending_render_frame_host_->UpdateWebUI(dest_url, bindings);
     if (pending_render_frame_host_->web_ui()) {
       pending_render_frame_host_->web_ui()->RenderViewCreated(
           pending_render_frame_host_->render_view_host());
     }
 
-    // We now have a pending RFH and possibly an associated pending WebUI.
-    DCHECK_EQ(GetNavigatingWebUI(), pending_render_frame_host_->web_ui());
-
     // Check if our current RFH is live before we set up a transition.
     if (!render_frame_host_->IsRenderFrameLive()) {
       // The current RFH is not live.  There's no reason to sit around with a
       // sad tab or a newly created RFH while we wait for the pending RFH to
       // navigate.  Just switch to the pending RFH now and go back to normal.
       // (Note that we don't care about on{before}unload handlers if the current
       // RFH isn't live.)
       CommitPending();
       return render_frame_host_.get();
     }
@@ skipping 55 matching lines @@
 void RenderFrameHostManager::UpdateWebUIOnCurrentFrameHost(const GURL& dest_url,
                                                            bool dest_is_restore,
                                                            int bindings) {
   WebUI::TypeID previous_web_ui_type = render_frame_host_->web_ui_type();
   bool changed_web_ui = render_frame_host_->UpdateWebUI(dest_url, bindings);
 
   // If a change in WebUI happened, check this is an acceptable case.
   if (changed_web_ui)
     CheckWebUITransition(previous_web_ui_type, dest_url, dest_is_restore);
 
-  // If there is a WebUI in the current RenderFrameHost, it will navigate.
-  current_web_ui_is_navigating_ = !!render_frame_host_->web_ui();
-  DCHECK_EQ(GetNavigatingWebUI(), render_frame_host_->web_ui());
-
   // If the current RenderFrameHost has a WebUI and the associated RenderFrame
   // is alive, notify to the WebUI that the RenderView is being created or
   // reused depending on whether the WebUI was changed or not.
-  if (GetNavigatingWebUI() && render_frame_host_->IsRenderFrameLive()) {
+  if (render_frame_host_->web_ui() && render_frame_host_->IsRenderFrameLive()) {
     if (changed_web_ui) {
-      GetNavigatingWebUI()->RenderViewCreated(
+      render_frame_host_->web_ui()->RenderViewCreated(
           render_frame_host_->render_view_host());
     } else {
-      GetNavigatingWebUI()->RenderViewReused(
+      render_frame_host_->web_ui()->RenderViewReused(
           render_frame_host_->render_view_host(),
           frame_tree_node_->IsMainFrame());
     }
   }
 }
 
 void RenderFrameHostManager::CancelPending() {
   TRACE_EVENT1("navigation", "RenderFrameHostManager::CancelPending",
                "FrameTreeNode id", frame_tree_node_->frame_tree_node_id());
-  current_web_ui_is_navigating_ = false;
   DiscardUnusedFrame(UnsetPendingRenderFrameHost());
 }
 
 scoped_ptr<RenderFrameHostImpl>
 RenderFrameHostManager::UnsetPendingRenderFrameHost() {
   scoped_ptr<RenderFrameHostImpl> pending_render_frame_host =
       pending_render_frame_host_.Pass();
 
   RenderFrameDevToolsAgentHost::OnCancelPendingNavigation(
       pending_render_frame_host.get(),
       render_frame_host_.get());
 
-  current_web_ui_is_navigating_ = false;
-
   // We no longer need to prevent the process from exiting.
   pending_render_frame_host->GetProcess()->RemovePendingView();
 
   return pending_render_frame_host.Pass();
 }
 
 scoped_ptr<RenderFrameHostImpl> RenderFrameHostManager::SetRenderFrameHost(
     scoped_ptr<RenderFrameHostImpl> render_frame_host) {
   // Swap the two.
   scoped_ptr<RenderFrameHostImpl> old_render_frame_host =
@@ skipping 220 matching lines @@
           is_back_from_renderer_url || is_webview_tag_guest);
   } else {
     // Going from having to not having a WebUI is acceptable when Navigating to
     // a special renderer URL.
     CHECK(IsRendererDebugURL(
         SiteInstanceImpl::GetEffectiveURL(browser_context, dest_url)));
   }
 }
 
 }  // namespace content