diff --git a/browser/native_window.cc b/browser/native_window.cc
index 02421c376f5f..5542863bd5ae 100644
--- a/browser/native_window.cc
+++ b/browser/native_window.cc
@@ -196,6 +196,12 @@ void NativeWindow::BeforeUnloadFired(content::WebContents* tab,
     WindowList::WindowCloseCancelled(this);
 }
 
+void NativeWindow::MoveContents(content::WebContents* source,
+                                const gfx::Rect& pos) {
+  SetPosition(pos.origin());
+  SetSize(pos.size());
+}
+
 void NativeWindow::CloseContents(content::WebContents* source) {
   // When the web contents is gone, close the window immediately, but the
   // memory will not be freed until you call delete.
@@ -207,6 +213,11 @@ void NativeWindow::CloseContents(content::WebContents* source) {
   NotifyWindowClosed();
 }
 
+bool NativeWindow::IsPopupOrPanel(const content::WebContents* source) const {
+  // Only popup window can use things like window.moveTo.
+  return true;
+}
+
 bool NativeWindow::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(NativeWindow, message)
diff --git a/browser/native_window.h b/browser/native_window.h
index 52680901a542..72da57c5896c 100644
--- a/browser/native_window.h
+++ b/browser/native_window.h
@@ -131,7 +131,11 @@ class NativeWindow : public content::WebContentsDelegate,
   virtual void BeforeUnloadFired(content::WebContents* tab,
                                  bool proceed,
                                  bool* proceed_to_fire_unload) OVERRIDE;
+  virtual void MoveContents(content::WebContents* source,
+                            const gfx::Rect& pos) OVERRIDE;
   virtual void CloseContents(content::WebContents* source) OVERRIDE;
+  virtual bool IsPopupOrPanel(
+      const content::WebContents* source) const OVERRIDE;
 
   // Implementations of content::WebContentsObserver.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;