Hook up SetInstantPreviewHeight for ChromeOS.

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // 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.
 
 #include "chrome/browser/ui/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 558 matching lines @@
 gfx::Rect BrowserWindowCocoa::GetInstantBounds() {
   // Flip coordinates based on the primary screen.
   NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
   NSRect monitorFrame = [screen frame];
   NSRect frame = [controller_ instantFrame];
   gfx::Rect bounds(NSRectToCGRect(frame));
   bounds.set_y(NSHeight(monitorFrame) - bounds.y() - bounds.height());
   return bounds;
 }
 
+void BrowserWindowCocoa::SetInstantPreviewHeight(int height,
+                                                 InstantSizeUnits units) {
+  // TODO(jered): Implement.
+  NOTIMPLEMENTED();
+}
+
 bool BrowserWindowCocoa::IsInstantTabShowing()  {
   return [controller_ isInstantTabShowing];
 }
 
 WindowOpenDisposition BrowserWindowCocoa::GetDispositionForPopupBounds(
     const gfx::Rect& bounds) {
   // In Lion fullscreen mode, convert popups into tabs.
   if (base::mac::IsOSLionOrLater() && IsFullscreen())
     return NEW_FOREGROUND_TAB;
   return NEW_POPUP;
@@ skipping 52 matching lines @@
   AvatarMenuBubbleController* menu =
       [[AvatarMenuBubbleController alloc] initWithBrowser:browser_
                                                anchoredAt:point];
   [[menu bubble] setAlignment:info_bubble::kAlignEdgeToAnchorEdge];
   [menu showWindow:nil];
 }
 
 void BrowserWindowCocoa::ShowAvatarBubbleFromAvatarButton() {
   [[controller_ avatarButtonController] showAvatarBubble];
 }