Revert of Ensure that title and state updating works without page id.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 794f2f288a9e1f06d4cd32d9024dfc9e283071e5..4ff481b2dcc5f5b1251ecc74f8b6c665546efd28 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -3839,7 +3839,7 @@
     // method.
     entry = new_entry;
   } else {
-    CHECK_EQ(entry, new_entry);
+    DCHECK_EQ(entry, new_entry);
   }
 
   if (page_state == entry->GetPageState())
@@ -4019,7 +4019,7 @@
       static_cast<RenderViewHostImpl*>(render_frame_host->GetRenderViewHost());
   NavigationEntryImpl* new_entry = controller_.GetEntryWithUniqueID(
       rvhi->nav_entry_id());
-  CHECK_EQ(entry, new_entry);
+  DCHECK_EQ(entry, new_entry);
 
   // We can handle title updates when we don't have an entry in
   // UpdateTitleForEntry, but only if the update is from the current RVH.