Cleanup: Make TogglePinnedToStartScreen() Windows only.

chrome/browser/ui/browser_commands.cc

 // Copyright 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/browser_commands.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 797 matching lines @@
 
 void ManagePasswordsForPage(Browser* browser) {
   if (!browser->window()->IsActive())
     return;
 
   WebContents* web_contents =
       browser->tab_strip_model()->GetActiveWebContents();
   chrome::ShowManagePasswordsBubble(web_contents);
 }
 
+#if defined(OS_WIN)
 void TogglePagePinnedToStartScreen(Browser* browser) {
-#if defined(OS_WIN)
   MetroPinTabHelper::FromWebContents(
       browser->tab_strip_model()->GetActiveWebContents())->
           TogglePinnedToStartScreen();
+}
 #endif
-}
 
 void SavePage(Browser* browser) {
   content::RecordAction(UserMetricsAction("SavePage"));
   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
   if (current_tab && current_tab->GetContentsMimeType() == "application/pdf")
     content::RecordAction(UserMetricsAction("PDF.SavePage"));
   current_tab->OnSavePage();
 }
 
 bool CanSavePage(const Browser* browser) {
@@ skipping 453 matching lines @@
                                           browser->host_desktop_type()));
   app_browser->tab_strip_model()->AppendWebContents(contents, true);
 
   contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
   contents->GetRenderViewHost()->SyncRendererPrefs();
   app_browser->window()->Show();
 }
 #endif  // defined(ENABLE_EXTENSIONS)
 
 }  // namespace chrome