Fix a space problem with the use of XkbKeyboardLayoutEngine::xkb_flag_map_

ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.cc

 // Copyright 2014 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 "ui/events/ozone/layout/xkb/xkb_keyboard_layout_engine.h"
 
 #include <stddef.h>
 #include <xkbcommon/xkbcommon-names.h>
 
 #include <algorithm>
@@ skipping 803 matching lines @@
     int ui_flag;
     const char* xkb_name;
   } flags[] = {{ui::EF_SHIFT_DOWN, XKB_MOD_NAME_SHIFT},
                {ui::EF_CONTROL_DOWN, XKB_MOD_NAME_CTRL},
                {ui::EF_ALT_DOWN, XKB_MOD_NAME_ALT},
                {ui::EF_COMMAND_DOWN, XKB_MOD_NAME_LOGO},
                {ui::EF_ALTGR_DOWN, "Mod5"},
                {ui::EF_MOD3_DOWN, "Mod3"},
                {ui::EF_CAPS_LOCK_ON, XKB_MOD_NAME_CAPS}};
   xkb_flag_map_.clear();
   xkb_flag_map_.resize(arraysize(flags));

[spang, 2017/01/23 23:29:04]

reserve()

   for (size_t i = 0; i < arraysize(flags); ++i) {
     xkb_mod_index_t index = xkb_keymap_mod_get_index(keymap, flags[i].xkb_name);
     if (index == XKB_MOD_INVALID) {
       DVLOG(3) << "XKB keyboard layout does not contain " << flags[i].xkb_name;
     } else {
       xkb_mod_mask_t flag = static_cast<xkb_mod_mask_t>(1) << index;
       XkbFlagMapEntry e = {flags[i].ui_flag, flag};
-      xkb_flag_map_.push_back(e);
+      xkb_flag_map_[i] = e;
     }
   }
 
   // Update num lock mask.
   num_lock_mod_mask_ = 0;
   xkb_mod_index_t num_mod_index =
       xkb_keymap_mod_get_index(keymap, XKB_MOD_NAME_NUM);
   if (num_mod_index != XKB_MOD_INVALID)
     num_lock_mod_mask_ = static_cast<xkb_mod_mask_t>(1) << num_mod_index;
 }
@@ skipping 126 matching lines @@
       close_index = layout_name.size();
     *layout_variant = layout_name.substr(parentheses_index + 1,
                                          close_index - parentheses_index - 1);
   } else if (dash_index != std::string::npos) {
     *layout_id = layout_name.substr(0, dash_index);
     *layout_variant = layout_name.substr(dash_index + 1);
   }
 }
 
 }  // namespace ui