Hook up SetInstantPreviewHeight for ChromeOS.

chrome/browser/ui/browser_window.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_WINDOW_H_
 #define CHROME_BROWSER_UI_BROWSER_WINDOW_H_
 
 #include "base/callback_forward.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/ui/base_window.h"
 #include "chrome/browser/ui/bookmarks/bookmark_bar.h"
 #include "chrome/browser/ui/fullscreen/fullscreen_exit_bubble_type.h"
 #include "chrome/browser/ui/sync/one_click_signin_sync_starter.h"
 #include "chrome/common/content_settings_types.h"
+#include "chrome/common/instant_types.h"
 #include "ui/gfx/native_widget_types.h"
 #include "webkit/glue/window_open_disposition.h"
 
 class Browser;
 class BrowserWindowTesting;
 class DownloadShelf;
 class FindBar;
 class GURL;
 class LocationBar;
 class Profile;
@@ skipping 291 matching lines @@
 
   // Sets the presentation mode for the window.  If the window is not already in
   // fullscreen, also enters fullscreen mode.
   virtual void EnterPresentationMode(
       const GURL& url,
       FullscreenExitBubbleType bubble_type) = 0;
   virtual void ExitPresentationMode() = 0;
   virtual bool InPresentationMode() = 0;
 #endif
 
-  // Invoked when instant's tab contents should be shown.
-  virtual void ShowInstant(TabContents* preview) = 0;
+  // Invoked when instant's tab contents should be shown with given |height|.
+  virtual void ShowInstant(TabContents* preview,
+                           int height,
+                           InstantSizeUnits units) = 0;
 
-  // Invoked when the instant's tab contents should be hidden.
+  // Invoked when instant's tab contents should be hidden.
   virtual void HideInstant() = 0;
 
   // Returns the desired bounds for instant in screen coordinates. Note that if
   // instant isn't currently visible this returns the bounds instant would be
   // placed at.
   virtual gfx::Rect GetInstantBounds() = 0;
 
   // Checks if an instant's tab contents is being shown.
   virtual bool IsInstantTabShowing() = 0;
 
@@ skipping 69 matching lines @@
 
   // Returns the ToolbarView.
   virtual ToolbarView* GetToolbarView() const = 0;
 #endif
 
  protected:
   virtual ~BrowserWindowTesting() {}
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_WINDOW_H_