Instant: Use only one hidden WebContents per profile.

chrome/browser/ui/gtk/instant_overlay_controller_gtk.cc

 // Copyright 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 "chrome/browser/ui/gtk/instant_preview_controller_gtk.h"
+#include "chrome/browser/ui/gtk/instant_overlay_controller_gtk.h"
 
 #include "chrome/browser/instant/instant_model.h"
 #include "chrome/browser/ui/gtk/browser_window_gtk.h"
 #include "chrome/browser/ui/gtk/tab_contents_container_gtk.h"
 
-InstantPreviewControllerGtk::InstantPreviewControllerGtk(
+InstantOverlayControllerGtk::InstantOverlayControllerGtk(
     BrowserWindowGtk* window,
     TabContentsContainerGtk* contents)
-    : InstantPreviewController(window->browser()),
+    : InstantOverlayController(window->browser()),
       window_(window),
       contents_(contents) {
 }
 
-InstantPreviewControllerGtk::~InstantPreviewControllerGtk() {
+InstantOverlayControllerGtk::~InstantOverlayControllerGtk() {
 }
 
-void InstantPreviewControllerGtk::PreviewStateChanged(
+void InstantOverlayControllerGtk::OverlayStateChanged(
     const InstantModel& model) {
-  if (model.mode().is_search_suggestions()) {
+  if (model.overlay()) {
     // TODO(jered): Support non-100% height.
-    contents_->SetPreview(model.GetPreviewContents());
+    contents_->SetOverlay(model.overlay());
   } else {
-    contents_->SetPreview(NULL);
+    contents_->SetOverlay(NULL);
   }
   window_->MaybeShowBookmarkBar(false);
 }