Implement Instant on Mac

chrome/browser/cocoa/browser_window_controller.h

 // Copyright (c) 2010 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_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 #pragma once
 
 // A class acting as the Objective-C controller for the Browser
 // object. Handles interactions between Cocoa and the cross-platform
@@ skipping 243 matching lines @@
 - (NSPoint)themePatternPhase;
 
 // Return the point to which a bubble window's arrow should point.
 - (NSPoint)bookmarkBubblePoint;
 
 // Call when the user changes the tab strip display mode, enabling or
 // disabling vertical tabs for this browser. Re-flows the contents of the
 // browser.
 - (void)toggleTabStripDisplayMode;
 
+// Shows or hides the Instant preview contents.
+- (void)showInstant:(TabContents*)previewContents;
+- (void)hideInstant;
+
 // Called when the Add Search Engine dialog is closed.
 - (void)sheetDidEnd:(NSWindow*)sheet
          returnCode:(NSInteger)code
             context:(void*)context;
 
 @end  // @interface BrowserWindowController
 
 
 // Methods having to do with the window type (normal/popup/app, and whether the
 // window has various features; fullscreen methods are separate).
@@ skipping 105 matching lines @@
 - (void)resetWindowGrowthState;
 
 // Computes by how far in each direction, horizontal and vertical, the
 // |source| rect doesn't fit into |target|.
 - (NSSize)overflowFrom:(NSRect)source
                     to:(NSRect)target;
 @end  // @interface BrowserWindowController(TestingAPI)
 
 
 #endif  // CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_H_