Add key modifier on minimize/restore button click to minimize/restore all Panels for Mac.

chrome/browser/ui/panels/panel_window_controller_cocoa.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_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 66 matching lines @@
 // called once per PanelWindowControllerCocoa.
 - (void)addFindBar:(FindBarCocoaController*)findBarCocoaController;
 
 // Initiate the closing of the panel, starting from the platform-independent
 // layer. This will take care of PanelManager, other panels and close the
 // native window at the end.
 - (void)closePanel;
 
 // Minimize/Restore the panel or all panels, depending on the modifier.
 // Invoked when the minimize/restore button is clicked.
-- (void)minimizePanel:(int)modifierFlags;
-- (void)restorePanel:(int)modifierFlags;
+- (void)minimizeButtonClicked:(int)modifierFlags;
+- (void)restoreButtonClicked:(int)modifierFlags;
 
 // Uses nonblocking animation for moving the Panels. It's especially
 // important in case of dragging a Panel when other Panels should 'slide out',
 // indicating the potential drop slot.
 // |frame| is in screen coordinates, same as [window frame].
 // |animate| controls if the bounds animation is needed or not.
 - (void)setPanelFrame:(NSRect)frame
               animate:(BOOL)animate;
 
 // Used by PanelTitlebarViewCocoa when user rearranges the Panels by dragging.
@@ skipping 46 matching lines @@
 - (void)ensureFullyVisible;
 
 - (void)updateWindowLevel;
 
 // Turns on user-resizable corners/sides indications and enables live resize.
 - (void)enableResizeByMouse:(BOOL)enable;
 
 @end  // @interface PanelWindowController
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_WINDOW_CONTROLLER_COCOA_H_