Hook up SetInstantPreviewHeight for ChromeOS.

chrome/test/base/test_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_TEST_BASE_TEST_BROWSER_WINDOW_H_
 #define CHROME_TEST_BASE_TEST_BROWSER_WINDOW_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "build/build_config.h"
@@ skipping 111 matching lines @@
   virtual void Paste() OVERRIDE {}
 #if defined(OS_MACOSX)
   virtual void OpenTabpose() OVERRIDE {}
   virtual void EnterPresentationMode(
       const GURL& url,
       FullscreenExitBubbleType bubble_type) OVERRIDE {}
   virtual void ExitPresentationMode() OVERRIDE {}
   virtual bool InPresentationMode() OVERRIDE;
 #endif
 
-  virtual void ShowInstant(TabContents* preview_contents) OVERRIDE {}
+  virtual void ShowInstant(TabContents* preview_contents,
+                           int height,
+                           InstantSizeUnits units) OVERRIDE {}
   virtual void HideInstant() OVERRIDE {}
   virtual gfx::Rect GetInstantBounds() OVERRIDE;
   virtual bool IsInstantTabShowing() OVERRIDE;
   virtual WindowOpenDisposition GetDispositionForPopupBounds(
       const gfx::Rect& bounds) OVERRIDE;
   virtual FindBar* CreateFindBar() OVERRIDE;
   virtual void ShowAvatarBubble(content::WebContents* web_contents,
                                 const gfx::Rect& rect) OVERRIDE {}
   virtual void ShowAvatarBubbleFromAvatarButton() OVERRIDE {}
 
  protected:
   virtual void DestroyBrowser() OVERRIDE {}
 
  private:
   TestLocationBar location_bar_;
 
   DISALLOW_COPY_AND_ASSIGN(TestBrowserWindow);
 };
 
 namespace chrome {
 
 // Helpers that handle the lifetime of TestBrowserWindow instances.
 Browser* CreateBrowserWithTestWindowForProfile(Profile* profile);
 Browser* CreateBrowserWithTestWindowForParams(Browser::CreateParams* params);
 
 }  // namespace chrome
 
 #endif  // CHROME_TEST_BASE_TEST_BROWSER_WINDOW_H_