Added function to provide the short board name of the device

ash/wm/lock_state_controller.cc

 // Copyright 2013 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 "ash/wm/lock_state_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 
@@ skipping 470 matching lines @@
     chromeos::DBusThreadManager::Get()
         ->GetSessionManagerClient()
         ->RequestLockScreen();
 #endif
   }
 
   base::TimeDelta timeout =
       base::TimeDelta::FromMilliseconds(kLockFailTimeoutMs);
 #if defined(OS_CHROMEOS)
   // Increase lock timeout for slower hardware, see http://crbug.com/350628
-  const std::string board = base::SysInfo::GetLsbReleaseBoard();
-  if (board == "x86-mario" ||
-      base::StartsWith(board, "x86-alex", base::CompareCase::SENSITIVE) ||
-      base::StartsWith(board, "x86-zgb", base::CompareCase::SENSITIVE) ||
-      base::StartsWith(board, "daisy", base::CompareCase::SENSITIVE)) {
+  const std::string board = base::SysInfo::GetStrippedReleaseBoard();
+  if (board == "x86-mario" || board == "x86-alex" || board == "x86-zgb" ||

[Nikita (slow), 2016/11/22 19:10:11]

That wouldn't work as there're some modifications of boards that *start with*
"x86-alex" / "x86-zgb"

[Thiemo Nagel, 2016/11/23 20:21:19]

Apparently there's x86-alex and x86-alex-he, and likewise for x86-zgb.

Note that for daisy, there's daisy, daisy_spring and daisy_skate which are all
different devices though, and from reading crbug.com/445226 it doesn't seem to
that it was intended to cover all of them.  Thus I'd suggest to go for an exact
match with daisy.

[igorcov, 2016/11/25 11:08:59]

Done.

+      board == "daisy") {
     timeout *= 2;
   }
 #endif
   lock_fail_timer_.Start(FROM_HERE, timeout, this,
                          &LockStateController::OnLockFailTimeout);
 
   lock_duration_timer_.reset(new base::ElapsedTimer());
 }
 
 void LockStateController::PostLockAnimationFinished() {
@@ skipping 57 matching lines @@
     SessionStateAnimator::AnimationSpeed speed,
     SessionStateAnimator::AnimationSequence* animation_sequence) {
   if (unlocked_properties_.get() && unlocked_properties_->wallpaper_is_hidden) {
     animation_sequence->StartAnimation(SessionStateAnimator::WALLPAPER,
                                        SessionStateAnimator::ANIMATION_FADE_OUT,
                                        speed);
   }
 }
 
 }  // namespace ash