[Win] Add a fast profile switcher to the Windows taskbar item.

chrome/common/chrome_switches.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/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
 
 // -----------------------------------------------------------------------------
 // Can't find the switch you are looking for? Try looking in:
 // ash/ash_switches.cc
 // base/base_switches.cc
 // chromeos/chromeos_switches.cc
 // etc.
 //
 // When commenting your switch, please use the same voice as surrounding
 // comments. Imagine "This switch..." at the beginning of the phrase, and it'll
 // all work out.
 // -----------------------------------------------------------------------------
 
+// If set, Chrome will activate any existing browsers for a specific profile.
+// Used for example by the fast-user switcher in the Windows JumpList.
+const char kActivateExistingProfileBrowser[] =
+    "activate-existing-profile-browser";
+
 // Allows third-party content included on a page to prompt for a HTTP basic
 // auth username/password pair.
 const char kAllowCrossOriginAuthPrompt[]    = "allow-cross-origin-auth-prompt";
 
 // On ChromeOS, file:// access is disabled except for certain whitelisted
 // directories. This switch re-enables file:// for testing.
 const char kAllowFileAccess[]               = "allow-file-access";
 
 // Allow non-secure origins to use the screen capture API and the desktopCapture
 // extension API.
@@ skipping 1336 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches