Unprefix flexbox properties in various CSS files

Source/core/css/html.css

 /*
  * The default style sheet used to render HTML.
  *
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 410 matching lines @@
     -webkit-user-select: text;
     cursor: auto;
 }
 
 input[type="search"] {
     -webkit-appearance: searchfield;
     box-sizing: border-box;
 }
 
 input::-webkit-textfield-decoration-container {
-    display: -webkit-flex;
-    -webkit-align-items: center;
+    display: flex;
+    align-items: center;
     -webkit-user-modify: read-only !important;
     content: none !important;
 }
 
 input[type="search"]::-webkit-textfield-decoration-container {
     direction: ltr;
 }
 
 input::-webkit-clear-button {
     -webkit-appearance: searchfield-cancel-button;
     display: inline-block;
-    -webkit-flex: none;
+    flex: none;
     -webkit-user-modify: read-only !important;
     -webkit-margin-start: 2px;
 }
 
 input[type="search"]::-webkit-search-cancel-button {
     -webkit-appearance: searchfield-cancel-button;
     display: block;
-    -webkit-flex: none;
+    flex: none;
     -webkit-user-modify: read-only !important;
     -webkit-margin-start: 1px;
 }
 
 input[type="search"]::-webkit-search-decoration {
     -webkit-appearance: searchfield-decoration;
     display: block;
-    -webkit-flex: none;
+    flex: none;
     -webkit-user-modify: read-only !important;
     -webkit-align-self: flex-start;
     margin: auto 0;
 }
 
 input[type="search"]::-webkit-search-results-decoration {
     -webkit-appearance: searchfield-results-decoration;
     display: block;
-    -webkit-flex: none;
+    flex: none;
     -webkit-user-modify: read-only !important;
     -webkit-align-self: flex-start;
     margin: auto 0;
 }
 
 #if defined(ENABLE_INPUT_MULTIPLE_FIELDS_UI) && ENABLE_INPUT_MULTIPLE_FIELDS_UI
 input[type="date"],
 input[type="datetime-local"],
 input[type="month"],
 input[type="time"],
 input[type="week"] {
-    -webkit-align-items: center;
+    align-items: center;
     display: -webkit-inline-flex;
     font-family: monospace;
     overflow: hidden;
     padding: 0;
     -webkit-padding-start: 1px;
 }
 
 input::-webkit-datetime-edit {
-    -webkit-flex: 1;
+    flex: 1;
     -webkit-user-modify: read-only !important;
     display: inline-block;
     overflow: hidden;
 }
 
 input::-webkit-datetime-edit-fields-wrapper {
     -webkit-user-modify: read-only !important;
     display: inline-block;
     padding: 1px 0;
     white-space: pre;
@@ skipping 62 matching lines @@
     position: static;
     -webkit-margin-start: 2px;
 }
 
 #else
 input[type="date"],
 input[type="datetime-local"],
 input[type="month"],
 input[type="time"],
 input[type="week"] {
-    -webkit-align-items: center;
+    align-items: center;
     -webkit-appearance: menulist-button;
     display: -webkit-inline-flex;
     overflow: hidden;
     width: 10em;
 }
 
 input::-webkit-date-and-time-value {
     margin: 1px 24px 1px 4px;
     white-space: pre;
 }
 #endif
 
 input::-webkit-inner-spin-button {
     -webkit-appearance: inner-spin-button;
     display: block;
     position: relative;
     cursor: default;
     /* This height property is ignored for input type "number" and others which
      * use RenderTextControlSingleLine as renderer which sets height of spin
      * button in layout(). */
     height: 1.5em;
     vertical-align: top;
-    -webkit-flex: none;
+    flex: none;
     -webkit-user-select: none;
     -webkit-user-modify: read-only !important;
 }
 
 #if defined(ENABLE_INPUT_SPEECH) && ENABLE_INPUT_SPEECH
 input::-webkit-input-speech-button {
     -webkit-appearance: -webkit-input-speech-button;
     display: block;
     vertical-align: top;
-    -webkit-flex: none;
+    flex: none;
     -webkit-user-modify: read-only !important;
     -webkit-align-self: flex-start;
     margin: auto 0;
 }
 #endif
 
 keygen, select {
     border-radius: 5px;
 }
 
 keygen::-webkit-keygen-select {
     margin: 0px;
 }
 
 textarea {
     -webkit-appearance: textarea;
     background-color: white;
     border: 1px solid;
     -webkit-rtl-ordering: logical;
     -webkit-user-select: text;
-    -webkit-flex-direction: column;
+    flex-direction: column;
     resize: auto;
     cursor: auto;
     padding: 2px;
     white-space: pre-wrap;
     word-wrap: break-word;
 }
 
 ::-webkit-input-placeholder {
     -webkit-text-security: none;
     color: darkGray;
@@ skipping 13 matching lines @@
 }
 
 input[type="hidden"], input[type="image"], input[type="file"] {
     -webkit-appearance: initial;
     padding: initial;
     background-color: initial;
     border: initial;
 }
 
 input[type="file"] {
-    -webkit-align-items: baseline;
+    align-items: baseline;
     color: inherit;
     text-align: start !important;
 }
 
 input:-webkit-autofill {
     background-color: #FAFFBD !important;
     background-image:none !important;
     color: #000000 !important;
 }
 
@@ skipping 11 matching lines @@
 
 input[type="file"]::-webkit-file-upload-button {
     -webkit-appearance: push-button;
     -webkit-user-modify: read-only !important;
     white-space: nowrap;
     margin: 0;
     font-size: inherit;
 }
 
 input[type="button"], input[type="submit"], input[type="reset"], input[type="file"]::-webkit-file-upload-button, button {
-    -webkit-align-items: flex-start;
+    align-items: flex-start;
     text-align: center;
     cursor: default;
     color: ButtonText;
     padding: 2px 6px 3px 6px;
     border: 2px outset ButtonFace;
     background-color: ButtonFace;
     box-sizing: border-box
 }
 
 input[type="range"] {
     -webkit-appearance: slider-horizontal;
     padding: initial;
     border: initial;
     margin: 2px;
     color: #909090;
 }
 
 input[type="range"]::-webkit-slider-container, input[type="range"]::-webkit-media-slider-container {
-    -webkit-flex: 1;
+    flex: 1;
     box-sizing: border-box;
     -webkit-user-modify: read-only !important;
-    display: -webkit-flex;
+    display: flex;
     -webkit-align-contents: center;
 }
 
 input[type="range"]::-webkit-slider-runnable-track {
-    -webkit-flex: 1;
+    flex: 1;
     -webkit-align-self: center;
 
     box-sizing: border-box;
     -webkit-user-modify: read-only !important;
     display: block;
 }
 
 input[type="range"]::-webkit-slider-thumb, input[type="range"]::-webkit-media-slider-thumb {
     -webkit-appearance: sliderthumb-horizontal;
     box-sizing: border-box;
@@ skipping 30 matching lines @@
     box-sizing: border-box;
 }
 
 input[type="color"] {
     -webkit-appearance: square-button;
     width: 44px;
     height: 23px;
 }
 
 input[type="color"]::-webkit-color-swatch-wrapper {
-    display:-webkit-flex;
+    display:flex;
     padding: 4px 2px;
     box-sizing: border-box;
     -webkit-user-modify: read-only !important;
     width: 100%;
     height: 100%
 }
 
 input[type="color"]::-webkit-color-swatch {
     background-color: #000000;
     border: 1px solid #777777;
-    -webkit-flex: 1;
+    flex: 1;
     -webkit-user-modify: read-only !important;
 }
 
 #if defined(ENABLE_CALENDAR_PICKER) && ENABLE_CALENDAR_PICKER
 input::-webkit-calendar-picker-indicator {
     display: inline-block;
     width: 0.66em;
     height: 0.66em;
     padding: 0.17em 0.34em;
     -webkit-user-modify: read-only !important;
@@ skipping 21 matching lines @@
 input[type="week"][readonly]::-webkit-clear-button,
 input[type="week"][readonly]::-webkit-inner-spin-button,
 input[readonly]::-webkit-calendar-picker-indicator {
     visibility: hidden;
 }
 #endif // ENABLE_CALENDAR_PICKER
 
 select {
     -webkit-appearance: menulist;
     box-sizing: border-box;
-    -webkit-align-items: center;
+    align-items: center;
     border: 1px solid;
     white-space: pre;
     -webkit-rtl-ordering: logical;
     color: black;
     background-color: white;
     cursor: default;
 }
 
 select[size],
 select[multiple],
 select[size][multiple] {
     -webkit-appearance: listbox;
-    -webkit-align-items: flex-start;
+    align-items: flex-start;
     border: 1px inset gray;
     border-radius: initial;
     white-space: initial;
 }
 
 select[size="0"],
 select[size="1"] {
     -webkit-appearance: menulist;
-    -webkit-align-items: center;
+    align-items: center;
     border: 1px solid;
     border-radius: 5px;
     white-space: pre;
 }
 
 optgroup {
     font-weight: bolder;
 }
 
 option {
@@ skipping 264 matching lines @@
 @page {
     /* FIXME: Define the right default values for page properties. */
     size: auto;
     margin: auto;
     padding: 0px;
     border-width: 0px;
 }
 
 /* noscript is handled internally, as it depends on settings. */