Move Instant stuff off Browser.

chrome/browser/ui/browser_instant_controller.h

+// Copyright (c) 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.
+
+#ifndef CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
+#define CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_
+#pragma once
+
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/instant/instant_controller_delegate.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
+#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
+#include "content/public/browser/notification_observer.h"
+#include "webkit/glue/window_open_disposition.h"
+
+class Browser;
+class InstantController;
+class InstantUnloadHandler;
+class TabContents;
+
+namespace chrome {
+
+class BrowserInstantController : public InstantControllerDelegate,
+                                 public TabStripModelObserver,
+                                 public content::NotificationObserver {
+ public:
+  explicit BrowserInstantController(Browser* browser);
+  virtual ~BrowserInstantController();
+
+  // Commits the current instant, returning true on success. This is intended
+  // for use from OpenCurrentURL.
+  bool OpenInstant(WindowOpenDisposition disposition);
+
+  // Returns the InstantController or NULL if there is no InstantController for
+  // this BrowserInstantController.
+  InstantController* instant() const { return instant_.get(); }
+
+ private:
+  // Overridden from InstantControllerDelegate:
+  virtual void ShowInstant(TabContents* preview_contents) OVERRIDE;
+  virtual void HideInstant() OVERRIDE;
+  virtual void CommitInstant(TabContents* preview_contents) OVERRIDE;
+  virtual void SetSuggestedText(const string16& text,
+                                InstantCompleteBehavior behavior) OVERRIDE;
+  virtual gfx::Rect GetInstantBounds() OVERRIDE;
+  virtual void InstantPreviewFocused() OVERRIDE;
+  virtual TabContents* GetInstantHostTabContents() const OVERRIDE;
+
+  // Overridden from content::NotificationObserver:
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // Overridden from TabStripModelObserver:
+  virtual void TabDeactivated(TabContents* contents) OVERRIDE;
+
+  // If this browser should have instant one is created, otherwise does nothing.
+  void CreateInstantIfNecessary();
+
+  Browser* browser_;
+
+  scoped_ptr<InstantController> instant_;
+  scoped_ptr<InstantUnloadHandler> instant_unload_handler_;
+
+  PrefChangeRegistrar profile_pref_registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserInstantController);
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_UI_BROWSER_INSTANT_CONTROLLER_H_