[Tooltip] Make enterTouchDelay match the specification (#15008)

* Changed enterTouchDelay from 1000ms to 300ms

fixes #14948

* Update Tooltip.js

* yarn docs:api

packages/material-ui/src/Tooltip/Tooltip.js

@@ -483,7 +483,7 @@ Tooltip.defaultProps = {
   disableHoverListener: false,
   disableTouchListener: false,
   enterDelay: 0,
-  enterTouchDelay: 1000,
+  enterTouchDelay: 700,
   interactive: false,
   leaveDelay: 0,
   leaveTouchDelay: 1500,

pages/api/tooltip.md

@@ -24,7 +24,7 @@ import Tooltip from '@material-ui/core/Tooltip';
 | <span class="prop-name">disableHoverListener</span> | <span class="prop-type">bool</span> | <span class="prop-default">false</span> | Do not respond to hover events. |
 | <span class="prop-name">disableTouchListener</span> | <span class="prop-type">bool</span> | <span class="prop-default">false</span> | Do not respond to long press touch events. |
 | <span class="prop-name">enterDelay</span> | <span class="prop-type">number</span> | <span class="prop-default">0</span> | The number of milliseconds to wait before showing the tooltip. This property won't impact the enter touch delay (`enterTouchDelay`). |
-| <span class="prop-name">enterTouchDelay</span> | <span class="prop-type">number</span> | <span class="prop-default">1000</span> | The number of milliseconds a user must touch the element before showing the tooltip. |
+| <span class="prop-name">enterTouchDelay</span> | <span class="prop-type">number</span> | <span class="prop-default">700</span> | The number of milliseconds a user must touch the element before showing the tooltip. |
 | <span class="prop-name">id</span> | <span class="prop-type">string</span> |   | The relationship between the tooltip and the wrapper component is not clear from the DOM. This property is used with aria-describedby to solve the accessibility issue. If you don't provide this property. It falls back to a randomly generated id. |
 | <span class="prop-name">interactive</span> | <span class="prop-type">bool</span> | <span class="prop-default">false</span> | Makes a tooltip interactive, i.e. will not close when the user hovers over the tooltip before the `leaveDelay` is expired. |
 | <span class="prop-name">leaveDelay</span> | <span class="prop-type">number</span> | <span class="prop-default">0</span> | The number of milliseconds to wait before hiding the tooltip. This property won't impact the leave touch delay (`leaveTouchDelay`). |