Remove page id from title and state updating.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 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/web_contents/web_contents_impl.h"
 
 #include <stddef.h>
 
 #include <cmath>
 #include <utility>
@@ skipping 4316 matching lines @@
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     RenderProcessGone(GetCrashedStatus()));
 }
 
 void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh));
 }
 
 void WebContentsImpl::UpdateState(RenderViewHost* rvh,
-                                  int32_t page_id,
                                   const PageState& page_state) {
   DCHECK(!SiteIsolationPolicy::UseSubframeNavigationEntries());
 
   // Ensure that this state update comes from a RenderViewHost that belongs to
   // this WebContents.
   // TODO(nasko): This should go through RenderFrameHost.
   if (rvh->GetDelegate()->GetAsWebContents() != this)
     return;
 
-  // We must be prepared to handle state updates for any page. They occur
-  // when the user is scrolling and entering form data, as well as when we're
-  // leaving a page, in which case our state may have already been moved to
-  // the next page. The navigation controller will look up the appropriate
-  // NavigationEntry and update it when it is notified via the delegate.
-  RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(rvh);
-  NavigationEntryImpl* entry = controller_.GetEntryWithPageID(
-      rvhi->GetSiteInstance(), page_id);
-  if (!entry)
+  if (!rvh->GetMainFrame()) {
+    // When UseSubframeNavigationEntries is turned off, state updates only come
+    // in on main frames. When UseSubframeNavigationEntries is turned on,
+    // UpdateStateForFrame() should have been called rather than this function.
+    NOTREACHED();
     return;
+  }
 
-  // Sanity check that ensures nav_entry_id and page_id point to the same
-  // navigation entry.
-  if (rvhi->GetMainFrame()) {
-    NavigationEntryImpl* new_entry = controller_.GetEntryWithUniqueID(
-        static_cast<RenderFrameHostImpl*>(rvhi->GetMainFrame())
-            ->nav_entry_id());
-
-    DCHECK_EQ(entry, new_entry);
-  }
+  NavigationEntryImpl* entry = controller_.GetEntryWithUniqueID(
+      static_cast<RenderFrameHostImpl*>(rvh->GetMainFrame())->nav_entry_id());
 
   if (page_state == entry->GetPageState())
     return;  // Nothing to update.
   entry->SetPageState(page_state);
   controller_.NotifyEntryChanged(entry);
 }
 
 void WebContentsImpl::UpdateTargetURL(RenderViewHost* render_view_host,
                                       const GURL& url) {
   if (fullscreen_widget_routing_id_ != MSG_ROUTING_NONE) {
@@ skipping 203 matching lines @@
       exploded_state.top.item_sequence_number !=
           frame_entry->item_sequence_number()) {
     return;
   }
 
   frame_entry->SetPageState(page_state);
   controller_.NotifyEntryChanged(entry);
 }
 
 void WebContentsImpl::UpdateTitle(RenderFrameHost* render_frame_host,
-                                  int32_t page_id,
                                   const base::string16& title,
                                   base::i18n::TextDirection title_direction) {
   // If we have a title, that's a pretty good indication that we've started
   // getting useful data.
   SetNotWaitingForResponse();
 
   // Try to find the navigation entry, which might not be the current one.
   // For example, it might be from a recently swapped out RFH.
-  NavigationEntryImpl* entry = controller_.GetEntryWithPageID(
-      render_frame_host->GetSiteInstance(), page_id);
-
-  NavigationEntryImpl* new_entry = controller_.GetEntryWithUniqueID(
+  NavigationEntryImpl* entry = controller_.GetEntryWithUniqueID(
       static_cast<RenderFrameHostImpl*>(render_frame_host)->nav_entry_id());
-  if (SiteIsolationPolicy::AreCrossProcessFramesPossible()) {
-    // In out-of-process iframe enabled modes, page_id can't keep track of
-    // navigations in other processes, so we must use nav_entry_id.
-    // TODO(creis): Switch to use this as the default.
-    entry = new_entry;
-  }
-  // (In modes that have no out-of-process iframes, nav_entry_id and page_id
-  // will usually agree on which entry to update, but may disagree if commits
-  // from a previous RFH have been ignored, resetting the RFH's nav_entry_id.)
 
   // We can handle title updates when we don't have an entry in
   // UpdateTitleForEntry, but only if the update is from the current RVH.
   // TODO(avi): Change to make decisions based on the RenderFrameHost.
   if (!entry && render_frame_host != GetMainFrame())
     return;
 
   // TODO(evan): make use of title_direction.
   // http://code.google.com/p/chromium/issues/detail?id=27094
   UpdateTitleForEntry(entry, title);
@@ skipping 632 matching lines @@
   dialog_manager_ = dialog_manager;
 }
 
 void WebContentsImpl::RemoveBindingSet(const std::string& interface_name) {
   auto it = binding_sets_.find(interface_name);
   if (it != binding_sets_.end())
     binding_sets_.erase(it);
 }
 
 }  // namespace content