Replace ConstNodeRange with a const_cast

content/browser/frame_host/frame_tree.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/frame_tree.h"
 
 #include <stddef.h>
 
 #include <queue>
 #include <utility>
@@ skipping 65 matching lines @@
 }
 
 FrameTree::NodeIterator FrameTree::NodeRange::end() {
   return NodeIterator(nullptr, nullptr);
 }
 
 FrameTree::NodeRange::NodeRange(FrameTreeNode* root,
                                 FrameTreeNode* node_to_skip)
     : root_(root), node_to_skip_(node_to_skip) {}
 
-FrameTree::ConstNodeIterator::ConstNodeIterator(
-    const ConstNodeIterator& other) = default;
-
-FrameTree::ConstNodeIterator::~ConstNodeIterator() {}
-
-FrameTree::ConstNodeIterator& FrameTree::ConstNodeIterator::operator++() {
-  for (size_t i = 0; i < current_node_->child_count(); ++i) {
-    const FrameTreeNode* child = current_node_->child_at(i);
-    queue_.push(child);
-  }
-
-  if (!queue_.empty()) {
-    current_node_ = queue_.front();
-    queue_.pop();
-  } else {
-    current_node_ = nullptr;
-  }
-
-  return *this;
-}
-
-bool FrameTree::ConstNodeIterator::operator==(
-    const ConstNodeIterator& rhs) const {
-  return current_node_ == rhs.current_node_;
-}
-
-FrameTree::ConstNodeIterator::ConstNodeIterator(
-    const FrameTreeNode* starting_node)
-    : current_node_(starting_node) {}
-
-FrameTree::ConstNodeIterator FrameTree::ConstNodeRange::begin() {
-  return ConstNodeIterator(root_);
-}
-
-FrameTree::ConstNodeIterator FrameTree::ConstNodeRange::end() {
-  return ConstNodeIterator(nullptr);
-}
-
-FrameTree::ConstNodeRange::ConstNodeRange(const FrameTreeNode* root)
-    : root_(root) {}
-
 FrameTree::FrameTree(Navigator* navigator,
                      RenderFrameHostDelegate* render_frame_delegate,
                      RenderViewHostDelegate* render_view_delegate,
                      RenderWidgetHostDelegate* render_widget_delegate,
                      RenderFrameHostManager::Delegate* manager_delegate)
     : render_frame_delegate_(render_frame_delegate),
       render_view_delegate_(render_view_delegate),
       render_widget_delegate_(render_widget_delegate),
       manager_delegate_(manager_delegate),
       root_(new FrameTreeNode(this,
@@ skipping 61 matching lines @@
 }
 
 FrameTree::NodeRange FrameTree::SubtreeNodes(FrameTreeNode* subtree_root) {
   return NodeRange(subtree_root, nullptr);
 }
 
 FrameTree::NodeRange FrameTree::NodesExcept(FrameTreeNode* node_to_skip) {
   return NodeRange(root_, node_to_skip);
 }
 
-FrameTree::ConstNodeRange FrameTree::ConstNodes() const {
-  return ConstNodeRange(root_);
-}
-
 bool FrameTree::AddFrame(
     FrameTreeNode* parent,
     int process_id,
     int new_routing_id,
     blink::WebTreeScopeType scope,
     const std::string& frame_name,
     const std::string& frame_unique_name,
     blink::WebSandboxFlags sandbox_flags,
     const blink::WebFrameOwnerProperties& frame_owner_properties) {
   CHECK_NE(new_routing_id, MSG_ROUTING_NONE);
@@ skipping 249 matching lines @@
   root_->navigator()->GetDelegate()->DidChangeLoadProgress();
 }
 
 void FrameTree::ResetLoadProgress() {
   for (FrameTreeNode* node : Nodes())
     node->reset_loading_progress();
   load_progress_ = 0.0;
 }
 
 bool FrameTree::IsLoading() const {
-  for (const FrameTreeNode* node : ConstNodes()) {
+  for (const FrameTreeNode* node : const_cast<FrameTree*>(this)->Nodes()) {
     if (node->IsLoading())
       return true;
   }
   return false;
 }
 
 void FrameTree::ReplicatePageFocus(bool is_focused) {
   std::set<SiteInstance*> frame_tree_site_instances =
       CollectSiteInstances(this);
 
@@ skipping 12 matching lines @@
   // This is only used to set page-level focus in cross-process subframes, and
   // requests to set focus in main frame's SiteInstance are ignored.
   if (instance != root_manager->current_frame_host()->GetSiteInstance()) {
     RenderFrameProxyHost* proxy =
         root_manager->GetRenderFrameProxyHost(instance);
     proxy->Send(new InputMsg_SetFocus(proxy->GetRoutingID(), is_focused));
   }
 }
 
 }  // namespace content