Putting the findbar into a child window.

chrome/browser/cocoa/find_bar_cocoa_controller.h

 // Copyright (c) 2009 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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "chrome/browser/cocoa/find_bar_cocoa_controller.h"
 
 #include "base/scoped_nsobject.h"
 #include "base/string16.h"
@@ skipping 22 matching lines @@
 
   scoped_nsobject<FocusTracker> focusTracker_;
 
   // The currently-running animation.  This is defined to be non-nil if an
   // animation is running, and is always nil otherwise.  The
   // FindBarCocoaController should not be deallocated while an animation is
   // running (stopAnimation is currently called before the last tab in a
   // window is removed).
   scoped_nsobject<NSViewAnimation> currentAnimation_;
 
+  // The borderless window that contains this findbar.  This window will be
+  // added as a child window of the browser window.
+  scoped_nsobject<NSWindow> window_;
+
   // If YES, do nothing as a result of find pasteboard update notifications.
   BOOL suppressPboardUpdateActions_;
 };
 
 // Initializes a new FindBarCocoaController.
 - (id)init;
 
+- (NSWindow*)window;
+
 - (void)setFindBarBridge:(FindBarBridge*)findBar;
 
 - (IBAction)close:(id)sender;
 
 - (IBAction)nextResult:(id)sender;
 
 - (IBAction)previousResult:(id)sender;
 
 // Position the find bar at the given maximum y-coordinate (the min-y of the
 // bar -- toolbar + possibly bookmark bar, but not including the infobars) with
 // the given maximum width (i.e., the find bar should fit between 0 and
 // |maxWidth|).
 - (void)positionFindBarViewAtMaxY:(CGFloat)maxY maxWidth:(CGFloat)maxWidth;
 
 // Methods called from FindBarBridge.
 - (void)showFindBar:(BOOL)animate;
 - (void)hideFindBar:(BOOL)animate;
 - (void)stopAnimation;
 - (void)setFocusAndSelection;
 - (void)restoreSavedFocus;
 - (void)setFindText:(NSString*)findText;
 
 - (void)clearResults:(const FindNotificationDetails&)results;
 - (void)updateUIForFindResult:(const FindNotificationDetails&)results
                      withText:(const string16&)findText;
 - (BOOL)isFindBarVisible;
 - (BOOL)isFindBarAnimating;
 
 @end