Fix the color of the session length countdown timer

ash/system/session_length_limit/tray_session_length_limit.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 "ash/system/session_length_limit/tray_session_length_limit.h"
 
 #include <cmath>
 
 #include "ash/shelf_types.h"
 #include "ash/shell.h"
@@ skipping 190 matching lines @@
 
 void RemainingSessionTimeTrayView::UpdateText() {
   if (!visible())
     return;
 
   // Calculate the remaining session time, clamping so that it never falls below
   // zero or exceeds 99 hours.
   int seconds = floor(
       (limit_ - (base::Time::Now() - session_start_time_)).InSecondsF() + .5);
   seconds = std::min(std::max(seconds, 0), 99 * 60 * 60);
+  const SkColor color = seconds < kRemainingTimeWarningThresholdInSeconds ?
+      kRemainingTimeWarningColor : kRemainingTimeColor;
   int minutes = seconds / 60;
   seconds %= 60;
   const int hours = minutes / 60;
   minutes %= 60;
 
   const string16 hours_str = IntToTwoDigitString(hours);
   const string16 minutes_str = IntToTwoDigitString(minutes);
   const string16 seconds_str = IntToTwoDigitString(seconds);
-  const SkColor color = seconds < kRemainingTimeWarningThresholdInSeconds ?
-      kRemainingTimeWarningColor : kRemainingTimeColor;
 
   if (horizontal_layout_label_) {
     horizontal_layout_label_->SetText(l10n_util::GetStringFUTF16(
         IDS_ASH_STATUS_TRAY_REMAINING_SESSION_TIME,
         hours_str, minutes_str, seconds_str));
     horizontal_layout_label_->SetEnabledColor(color);
   } else if (vertical_layout_label_hours_left_) {
     vertical_layout_label_hours_left_->SetText(hours_str.substr(0, 1));
     vertical_layout_label_hours_right_->SetText(hours_str.substr(1, 1));
     vertical_layout_label_minutes_left_->SetText(minutes_str.substr(0, 1));
@@ skipping 67 matching lines @@
   tray_view_->SetSessionStartTime(start_time);
 }
 
 void TraySessionLengthLimit::OnSessionLengthLimitChanged(
     const base::TimeDelta& limit) {
   tray_view_->SetSessionLengthLimit(limit);
 }
 
 }  // namespace internal
 }  // namespace ash