Add a 'hidden' option to chrome.app.window.create()

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 127 matching lines @@
   if (did_save_animation_behavior)
     [window() setAnimationBehavior:saved_animation_behavior];
 
   browser_->OnWindowDidShow();
 }
 
 void BrowserWindowCocoa::ShowInactive() {
   [window() orderFront:controller_];
 }
 
+void BrowserWindowCocoa::Hide() {
+  // Not implemented.
+}
+
 void BrowserWindowCocoa::SetBounds(const gfx::Rect& bounds) {
   gfx::Rect real_bounds = [controller_ enforceMinWindowSize:bounds];
 
   ExitFullscreen();
   NSRect cocoa_bounds = NSMakeRect(real_bounds.x(), 0,
                                    real_bounds.width(),
                                    real_bounds.height());
   // Flip coordinates based on the primary screen.
   NSScreen* screen = [[NSScreen screens] objectAtIndex:0];
   cocoa_bounds.origin.y =
@@ skipping 506 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];
 }