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"
@@ skipping 308 matching lines @@
   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 the instant's tab contents should be hidden.
+  // Invoked when instant's tab contents should be hidden.
   virtual void HideInstant() = 0;
 
+  // Resizes the Instant preview. If |is_percent| is true, then |value| is a
+  // percentage of the available content height in [0, 100], otherwise |value|
+  // is the desired height in pixels.
+  virtual void SetInstantPreviewHeight(int value, bool is_percent) = 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;
 
   // Return the correct disposition for a popup window based on |bounds|.
   virtual WindowOpenDisposition GetDispositionForPopupBounds(
@@ skipping 67 matching lines @@
 
   // Returns the ToolbarView.
   virtual ToolbarView* GetToolbarView() const = 0;
 #endif
 
  protected:
   virtual ~BrowserWindowTesting() {}
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_WINDOW_H_