Move desktop-specific Instant bits to c/b/ui/search.

chrome/browser/instant/instant_overlay_model_observer.h

Index: chrome/browser/instant/instant_overlay_model_observer.h
diff --git a/chrome/browser/instant/instant_overlay_model_observer.h b/chrome/browser/instant/instant_overlay_model_observer.h
deleted file mode 100644
index 7169ce8a4c42d8ac4f240b33d43f4e54c5fbfa05..0000000000000000000000000000000000000000
--- a/chrome/browser/instant/instant_overlay_model_observer.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// 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_INSTANT_INSTANT_OVERLAY_MODEL_OBSERVER_H_
-#define CHROME_BROWSER_INSTANT_INSTANT_OVERLAY_MODEL_OBSERVER_H_
-
-class InstantOverlayModel;
-
-// This class defines the observer interface for the InstantOverlayModel.
-class InstantOverlayModelObserver {
- public:
-  // Informs the observer that the overlay state has changed. This can mean
-  // either the model state changed or the contents of the overlay changed.
-  virtual void OverlayStateChanged(const InstantOverlayModel& model) = 0;
-
- protected:
-  ~InstantOverlayModelObserver() {}
-};
-
-#endif  // CHROME_BROWSER_INSTANT_INSTANT_OVERLAY_MODEL_OBSERVER_H_