Fullscreen bubble: Draw a white box around "ESC" in "Press ESC to exit".

chrome/browser/ui/cocoa/exclusive_access_bubble_window_controller.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"  // for NOTREACHED()
 #include "base/mac/bundle_locations.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 206 matching lines @@
   [exitLabel_.get() setDelegate:self];
 
   NSString* exitLinkText;
   NSString* exitLinkedText;
   if (bubbleType_ ==
           EXCLUSIVE_ACCESS_BUBBLE_TYPE_FULLSCREEN_MOUSELOCK_EXIT_INSTRUCTION ||
       bubbleType_ == EXCLUSIVE_ACCESS_BUBBLE_TYPE_MOUSELOCK_EXIT_INSTRUCTION) {
     exitLinkText = @"";
     exitLinkedText =
         [@" " stringByAppendingString:l10n_util::GetNSStringF(
-                                          IDS_FULLSCREEN_PRESS_ESC_TO_EXIT,
-                                          l10n_util::GetStringUTF16(
-                                              IDS_APP_ESC_KEY))];
+                                      IDS_FULLSCREEN_PRESS_ESC_TO_EXIT_SENTENCE,
+                                      l10n_util::GetStringUTF16(
+                                          IDS_APP_ESC_KEY))];
   } else {
     exitLinkText = l10n_util::GetNSString(IDS_EXIT_FULLSCREEN_MODE);
     NSString* messageText = l10n_util::GetNSStringF(
                                    IDS_EXIT_FULLSCREEN_MODE_ACCELERATOR,
                                    l10n_util::GetStringUTF16(IDS_APP_ESC_KEY));
     exitLinkedText =
         [NSString stringWithFormat:@"%@ %@", exitLinkText, messageText];
   }
 
   NSFont* font = [NSFont
@@ skipping 103 matching lines @@
 - (void)hideSoon {
   hideTimer_.reset(
       [[NSTimer scheduledTimerWithTimeInterval:kInitialDelay
                                         target:self
                                       selector:@selector(hideTimerFired:)
                                       userInfo:nil
                                        repeats:NO] retain]);
 }
 
 @end