Updating the doc to reflect the new experimental.keybinding API.

chrome/common/extensions/extension.cc

 // 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/common/extensions/extension.h"
 
 #include <algorithm>
 
 #include "base/base64.h"
 #include "base/basictypes.h"
@@ skipping 271 matching lines @@
           errors::kInvalidKeyBinding,
           base::IntToString(index),
           original_keybinding);
       return false;
     }
   }
 
   // We support Ctrl+foo, Alt+foo, Ctrl+Shift+foo, Alt+Shift+foo, but not
   // Ctrl+Alt+foo. For a more detailed reason why we don't support Ctrl+Alt+foo:
   // http://blogs.msdn.com/b/oldnewthing/archive/2004/03/29/101121.aspx.
-  if (key == ui::VKEY_UNKNOWN || (ctrl == true && alt == true)) {
+  if (key == ui::VKEY_UNKNOWN || (ctrl && alt)) {
     *error = ExtensionErrorUtils::FormatErrorMessageUTF16(
         errors::kInvalidKeyBinding,
         base::IntToString(index),
         original_keybinding);
     return false;
   }
 
   accelerator_ = ui::Accelerator(key, shift, ctrl, alt);
 
   if (command_name !=
@@ skipping 2894 matching lines @@
     already_disabled(false),
     extension(extension) {}
 
 UpdatedExtensionPermissionsInfo::UpdatedExtensionPermissionsInfo(
     const Extension* extension,
     const ExtensionPermissionSet* permissions,
     Reason reason)
     : reason(reason),
       extension(extension),
       permissions(permissions) {}