Remove last usages of FindTabbedBrowserDeprecated.

chrome/browser/extensions/extension_install_ui_default.cc

Index: chrome/browser/extensions/extension_install_ui_default.cc
diff --git a/chrome/browser/extensions/extension_install_ui_default.cc b/chrome/browser/extensions/extension_install_ui_default.cc
index 91965d4b8c012573a0640dbc50ab444766d5c3f9..febbea1207bfa2853898599fe4610da967651a16 100644
--- a/chrome/browser/extensions/extension_install_ui_default.cc
+++ b/chrome/browser/extensions/extension_install_ui_default.cc
@@ -184,7 +184,9 @@ void ExtensionInstallUIDefault::ShowThemeInfoBar(
     return;
 
   // Get last active tabbed browser of profile.
-  Browser* browser = browser::FindTabbedBrowserDeprecated(profile, true);
+  Browser* browser = browser::FindTabbedBrowser(profile,
+                                                true,
+                                                chrome::GetActiveDesktop());

[grt (UTC plus 2), 2012/12/03 15:54:39]

if the user clicked on a link on the web store and then switched desktops,
should the infobar appear in the originating desktop? is it possible to know the
context at the time that the theme (extension) was installed?

[robertshield, 2012/12/03 20:25:58]

Sometimes. This is called from OnInstallSuccess, which is called in two places.
One of these places is CrxInstaller which is used in a couple of different
places, only some of which have context.

The main place that doesn't have context is in ChromeDownloadManagerDelegate
which is where my search stopped when I made this change. 

The best way to do this is probably to plumb context through the downloads
system so I could revert this line change and do that first. What say you?

   if (!browser)
     return;