Typo fix, since we use screens not screeens.

chrome/browser/ui/panels/panel_window_controller_cocoa.h

 // Copyright (c) 2011 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_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_
 
 // A class acting as the Objective-C controller for the Panel window
 // object. Handles interactions between Cocoa and the cross-platform
 // code. Each window has a single titlebar and is managed/owned by Panel.
@@ skipping 76 matching lines @@
 
 // Used by PanelTitlebarViewCocoa when user rearranges the Panels by dragging.
 - (void)startDrag;
 - (void)endDrag:(BOOL)cancelled;
 - (void)dragWithDeltaX:(int)deltaX;
 
 // Accessor for titlebar view.
 - (PanelTitlebarViewCocoa*)titlebarView;
 // Returns the height of titlebar, used to show the titlebar in
 // "Draw Attention" state.
-- (int)titlebarHeightInScreeenCoordinates;
+- (int)titlebarHeightInScreenCoordinates;
 
 // Invoked when user clicks on the titlebar. Flips Minimized/Restored states.
 - (void)flipExpansionState;
 
 // Executes the command in the context of the current browser.
 // |command| is an integer value containing one of the constants defined in the
 // "chrome/app/chrome_command_ids.h" file.
 - (void)executeCommand:(int)command;
 
 // Invokes the settings menu when the settings button is pressed.
 - (void)runSettingsMenu:(NSView*)button;
 
 // NSAnimationDelegate method, invoked when bounds animation is finished.
 - (void)animationDidEnd:(NSAnimation*)animation;
 // Terminates current bounds animation, if any.
 - (void)terminateBoundsAnimation;
 
 @end  // @interface PanelWindowController
 
 // Methods which are either only for testing, or only public for testing.
 @interface PanelWindowControllerCocoa(TestingAPI)
 
 + (void)enableBoundsAnimationNotifications;
 
 @end  // @interface PanelWindowControllerCocoa(TestingAPI)
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_