Reland: Remove DCHECK_IMPLIES/CHECK_IMPLIES.

content/browser/frame_host/navigation_entry_impl.cc

Index: content/browser/frame_host/navigation_entry_impl.cc
diff --git a/content/browser/frame_host/navigation_entry_impl.cc b/content/browser/frame_host/navigation_entry_impl.cc
index 3b1f6d85cf295e3414df9b5dbb08c7cdd07610c9..3c20692e03c50312f30edc0e96f0d122e6788369 100644
--- a/content/browser/frame_host/navigation_entry_impl.cc
+++ b/content/browser/frame_host/navigation_entry_impl.cc
@@ -602,8 +602,8 @@ NavigationEntryImpl::TreeNode* NavigationEntryImpl::FindFrameEntry(
     work_queue.pop();
     if (node->MatchesFrame(frame_tree_node)) {
       // Only the root TreeNode should have a FTN ID of -1.
-      DCHECK_IMPLIES(node->frame_entry->frame_tree_node_id() == -1,
-                     node == root_node());
+      DCHECK(node->frame_entry->frame_tree_node_id() != -1 ||
+             node == root_node());
       return node;
     }
     // Enqueue any children and keep looking.