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

chrome/browser/ui/startup/startup_browser_creator.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/browser/ui/startup/startup_browser_creator.h"
 
 #include <algorithm>   // For max().
 #include <set>
 
 #include "apps/app_load_service.h"
@@ skipping 70 matching lines @@
 #endif
 
 #if defined(TOOLKIT_VIEWS) && defined(OS_LINUX)
 #include "ui/events/x/touch_factory_x11.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "chrome/browser/web_applications/web_app_mac.h"
 #endif
 
+#if defined(OS_WIN)
+#include "chrome/browser/metrics/jumplist_metrics_win.h"
+#endif
+
 #if defined(ENABLE_FULL_PRINTING)
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
 #include "chrome/browser/printing/print_dialog_cloud.h"
 #endif
 
 using content::BrowserThread;
 using content::ChildProcessSecurityPolicy;
 
 namespace {
@@ skipping 515 matching lines @@
 
     // Return early here since we don't want to open a browser window.
     // The exception is when there are no browser windows, since we don't want
     // chrome to shut down.
     // TODO(jackhou): Do this properly once keep-alive is handled by the
     // background page of apps. Tracked at http://crbug.com/175381
     if (chrome::GetTotalBrowserCountForProfile(last_used_profile) != 0)
       return true;
   }
 
+#if defined(OS_WIN)
+  // Log whether this process was a result of an action in the Windows Jumplist.
+  if (command_line.HasSwitch(switches::kWinJumplistAction)) {
+    jumplist::LogJumplistActionFromSwitchValue(
+        command_line.GetSwitchValueASCII(switches::kWinJumplistAction));
+  }
+#endif
+
+  // If the profile is loaded and the --activate-existing-profile-browser flag
+  // is used, activate one of the profile's browser windows, if one exists.
+  // Continuing to process the command line is not needed, since this will
+  // end up opening a new browser window.
+  if (command_line.HasSwitch(switches::kActivateExistingProfileBrowser)) {
+    Browser* browser = chrome::FindTabbedBrowser(
+        last_used_profile, false, chrome::HOST_DESKTOP_TYPE_NATIVE);
+    if (browser) {
+      browser->window()->Activate();
+      return true;
+    }
+  }
+
   chrome::startup::IsProcessStartup is_process_startup = process_startup ?
       chrome::startup::IS_PROCESS_STARTUP :
       chrome::startup::IS_NOT_PROCESS_STARTUP;
   chrome::startup::IsFirstRun is_first_run = first_run::IsChromeFirstRun() ?
       chrome::startup::IS_FIRST_RUN : chrome::startup::IS_NOT_FIRST_RUN;
   // |last_opened_profiles| will be empty in the following circumstances:
   // - This is the first launch. |last_used_profile| is the initial profile.
   // - The user exited the browser by closing all windows for all
   // profiles. |last_used_profile| is the profile which owned the last open
   // window.
@@ skipping 134 matching lines @@
   // If we are showing the app list then chrome isn't shown so load the app
   // list's profile rather than chrome's.
   if (command_line.HasSwitch(switches::kShowAppList)) {
     return AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->
         GetProfilePath(user_data_dir);
   }
 
   return g_browser_process->profile_manager()->GetLastUsedProfileDir(
       user_data_dir);
 }