Fixes for -Wunused-function on Linux, Android and ChromeOS

chrome/browser/lifetime/application_lifetime.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/lifetime/application_lifetime.h"
 
 #include "ash/shell.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 33 matching lines @@
 #include "chromeos/dbus/update_engine_client.h"
 #endif
 
 #if defined(OS_WIN)
 #include "base/win/win_util.h"
 #endif
 
 namespace chrome {
 namespace {
 
+#if !defined(OS_ANDROID)
 // Returns true if all browsers can be closed without user interaction.
 // This currently checks if there is pending download, or if it needs to
 // handle unload handler.
 bool AreAllBrowsersCloseable() {
   chrome::BrowserIterator browser_it;
   if (browser_it.done())
     return true;
 
   // If there are any downloads active, all browsers are not closeable.
   // However, this does not block for malicious downloads.
   if (DownloadService::NonMaliciousDownloadCountAllProfiles() > 0)
     return false;
 
   // Check TabsNeedBeforeUnloadFired().
   for (; !browser_it.done(); browser_it.Next()) {
     if (browser_it->TabsNeedBeforeUnloadFired())
       return false;
   }
   return true;
 }
+#endif  // !defined(OS_ANDROID)
 
 int g_keep_alive_count = 0;
 
 #if defined(OS_CHROMEOS)
 // Whether a session manager requested to shutdown.
 bool g_session_manager_requested_shutdown = true;
 #endif
 
 }  // namespace
 
@@ skipping 301 matching lines @@
   //    environment is still active.
   if (browser->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_NATIVE)
     return !ash::Shell::HasInstance();
   else if (browser->host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
     return BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_NATIVE)->empty();
 #endif
   return true;
 }
 
 }  // namespace chrome