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

chrome/browser/ui/startup/startup_browser_creator.cc

Index: chrome/browser/ui/startup/startup_browser_creator.cc
diff --git a/chrome/browser/ui/startup/startup_browser_creator.cc b/chrome/browser/ui/startup/startup_browser_creator.cc
index 381f26533567411023af064022ddddb521e9decb..01896736b6375064c3849cc8eb47532d43c14d47 100644
--- a/chrome/browser/ui/startup/startup_browser_creator.cc
+++ b/chrome/browser/ui/startup/startup_browser_creator.cc
@@ -623,6 +623,15 @@ bool StartupBrowserCreator::ProcessCmdLineImpl(
       return true;
   }
 
+  if (command_line.HasSwitch(switches::kReuseExistingProfileBrowser)) {

[tapted, 2014/11/03 23:57:06]

an OWNER here might have a different opinion, but WDYT about putting this in
`ProcessCommandLineAlreadyRunning`? A browser can only be found if the profile
is loaded, so the asynchronous path doesn't need to be handled, and putting it
there puts the switch check nearer the GetProfileByPath call which feels kinda
nice.

[noms (inactive), 2014/11/04 20:03:09]

Done.

+    Browser* browser = chrome::FindTabbedBrowser(last_used_profile, false,

[tapted, 2014/11/03 23:57:06]

nit: one arg per line.

[noms (inactive), 2014/11/04 20:03:09]

Done.

+        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;