Add new behavior for window.focus as a note (#3539)

* Add new behavior for window.focus as a note.

* Change webview to true.

* Update api/Window.json

Co-Authored-By: jpmedley <[email protected]>

Author: jpmedley

api/Window.json

@@ -111,10 +111,10 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/blur",
           "support": {
             "chrome": {
-              "version_added": true
+              "version_added": "1"
             },
             "chrome_android": {
-              "version_added": true
+              "version_added": "18"
             },
             "edge": {
               "version_added": "12"
@@ -416,10 +416,10 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/close",
           "support": {
             "chrome": {
-              "version_added": true
+              "version_added": "1"
             },
             "chrome_android": {
-              "version_added": true
+              "version_added": "18"
             },
             "edge": {
               "version_added": "12"
@@ -514,10 +514,11 @@
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/focus",
           "support": {
             "chrome": {
-              "version_added": true
+              "version_added": "1",
+              "notes": "Starting in Chrome 66, opening a popup in fullscreen mode and calling this function will end fullscreen mode."
             },
             "chrome_android": {
-              "version_added": true
+              "version_added": "18"
             },
             "edge": {
               "version_added": "12"