InstantExtended: Nuke InstantOverlayController.

chrome/browser/ui/search/instant_overlay_model.h

-// 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.
-
-#ifndef CHROME_BROWSER_UI_SEARCH_INSTANT_OVERLAY_MODEL_H_
-#define CHROME_BROWSER_UI_SEARCH_INSTANT_OVERLAY_MODEL_H_
-
-#include "base/basictypes.h"
-#include "base/observer_list.h"
-#include "chrome/common/instant_types.h"
-#include "chrome/common/search_types.h"
-
-class InstantController;
-class InstantOverlayModelObserver;
-
-namespace content {
-class WebContents;
-}
-
-// Holds state that is important to any views concerned with visibility and
-// layout of the Instant overlay.
-class InstantOverlayModel {
- public:
-  explicit InstantOverlayModel(InstantController* controller);
-  ~InstantOverlayModel();
-
-  // InstantOverlayModel only uses Mode::mode internally. Other parts of Mode,
-  // such as Mode::origin, may have arbitrary values, and should be ignored.
-  const SearchMode& mode() const { return mode_; }
-  int height() const { return height_; }
-  InstantSizeUnits height_units() const { return height_units_; }
-
-  void SetOverlayState(const SearchMode& mode,
-                       int height,
-                       InstantSizeUnits height_units);
-
-  void SetOverlayContents(content::WebContents* overlay_contents);
-  content::WebContents* GetOverlayContents() const;
-
-  // Add and remove observers.
-  void AddObserver(InstantOverlayModelObserver* observer);
-  void RemoveObserver(InstantOverlayModelObserver* observer);
-
- private:
-  SearchMode mode_;
-  int height_;
-  InstantSizeUnits height_units_;
-
-  // Weak. Remembers the last set overlay contents to detect changes. Actual
-  // overlay contents is fetched from the |controller_| as this may not always
-  // reflect the actual overlay in effect.
-  content::WebContents* overlay_contents_;
-
-  // Weak. The controller currently holds some model state.
-  // TODO(dhollowa): Remove this, transfer all state to InstantOverlayModel.
-  InstantController* const controller_;
-
-  // Observers.
-  ObserverList<InstantOverlayModelObserver> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(InstantOverlayModel);
-};
-
-#endif  // CHROME_BROWSER_UI_SEARCH_INSTANT_OVERLAY_MODEL_H_