Move the `privacy` extension API out of experimental.

chrome/common/extensions/docs/samples.json

Index: chrome/common/extensions/docs/samples.json
diff --git a/chrome/common/extensions/docs/samples.json b/chrome/common/extensions/docs/samples.json
index b08ab61f1435fd87b9a6441516da79b876d3da73..aa87f721a0827f72e26b19ff44fdd753d5769670 100644
--- a/chrome/common/extensions/docs/samples.json
+++ b/chrome/common/extensions/docs/samples.json
@@ -408,7 +408,6 @@
       "description": "Sample extension which demonstrates how to access a preference.",
       "features": [
         "browser_action",
-        "experimental",
         "privacy"
       ],
       "icon": null,
@@ -417,14 +416,14 @@
       "packaged_app": false,
       "path": "examples\/api\/preferences\/enableReferrer\/",
       "protocols": [],
-      "search_string": "BLOCK\/ALLOW REFERRER API EXAMPLE EXTENSION SAMPLE EXTENSION WHICH DEMONSTRATES HOW TO ACCESS A PREFERENCE. BROWSER_ACTION EXPERIMENTAL PRIVACY CHROME.EXTENSION.ISALLOWEDINCOGNITOACCESS",
+      "search_string": "BLOCK\/ALLOW REFERRER API EXAMPLE EXTENSION SAMPLE EXTENSION WHICH DEMONSTRATES HOW TO ACCESS A PREFERENCE. BROWSER_ACTION PRIVACY CHROME.EXTENSION.ISALLOWEDINCOGNITOACCESS",
       "source_files": [
         "manifest.json",
         "popup.css",
         "popup.html",
         "popup.js"
       ],
-      "source_hash": "baa56eed23cb02c9fb88f73e15723bdfbb31ac4a",
+      "source_hash": "945c2628fed4cf19246a319639d545422a5902c5",
       "zip_path": "examples\/api\/preferences\/enableReferrer.zip"
     },
     {
@@ -435,7 +434,6 @@
       "description": "Sample extension which demonstrates how to access a preference.",
       "features": [
         "browser_action",
-        "experimental",
         "privacy"
       ],
       "icon": null,
@@ -444,14 +442,14 @@
       "packaged_app": false,
       "path": "examples\/api\/preferences\/allowThirdPartyCookies\/",
       "protocols": [],
-      "search_string": "BLOCK\/ALLOW THIRD-PARTY COOKIES API EXAMPLE EXTENSION SAMPLE EXTENSION WHICH DEMONSTRATES HOW TO ACCESS A PREFERENCE. BROWSER_ACTION EXPERIMENTAL PRIVACY CHROME.EXTENSION.ISALLOWEDINCOGNITOACCESS",
+      "search_string": "BLOCK\/ALLOW THIRD-PARTY COOKIES API EXAMPLE EXTENSION SAMPLE EXTENSION WHICH DEMONSTRATES HOW TO ACCESS A PREFERENCE. BROWSER_ACTION PRIVACY CHROME.EXTENSION.ISALLOWEDINCOGNITOACCESS",
       "source_files": [
         "manifest.json",
         "popup.css",
         "popup.html",
         "popup.js"
       ],
-      "source_hash": "fd25990fb70c9c6769f42dd93a569e117313d199",
+      "source_hash": "91701da98b4c3b28e4ecd3d126e0c955a2afadc3",
       "zip_path": "examples\/api\/preferences\/allowThirdPartyCookies.zip"
     },
     {