Mac: Make devtools window dockable.

chrome/browser/cocoa/browser_window_cocoa.mm

 // 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.
 
 #include "app/l10n_util_mac.h"
 #include "base/gfx/rect.h"
 #include "base/keyboard_codes.h"
 #include "base/logging.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_dll_resource.h"
@@ skipping 125 matching lines @@
 }
 
 void BrowserWindowCocoa::ShelfVisibilityChanged() {
   // Mac doesn't yet support showing the bookmark bar at a different size on
   // the new tab page. When it does, this method should attempt to relayout the
   // bookmark bar/extension shelf as their preferred height may have changed.
   NOTIMPLEMENTED();
 }
 
 void BrowserWindowCocoa::UpdateDevTools() {
-  NOTIMPLEMENTED();
+  [controller_ updateDevToolsForContents:
+      browser_->tabstrip_model()->GetSelectedTabContents()];
 }
 
 void BrowserWindowCocoa::FocusDevTools() {
   NOTIMPLEMENTED();
 }
 
 void BrowserWindowCocoa::UpdateLoadingAnimations(bool should_animate) {
   // Do nothing on Mac.
 }
 
@@ skipping 355 matching lines @@
       break;
   }
 }
 
 void BrowserWindowCocoa::DestroyBrowser() {
   [controller_ destroyBrowser];
 
   // at this point the controller is dead (autoreleased), so
   // make sure we don't try to reference it any more.
 }