[MD Bookmarks] Expose chrome.bookmarks.import/export to MD Bookmarks

chrome/common/extensions/api/_api_features.json

Index: chrome/common/extensions/api/_api_features.json
diff --git a/chrome/common/extensions/api/_api_features.json b/chrome/common/extensions/api/_api_features.json
index 0ed79ea8f5eff27eb40bd7466076517428f2a953..0c1a4f0d522e0b753100201910517efffa55634a 100644
--- a/chrome/common/extensions/api/_api_features.json
+++ b/chrome/common/extensions/api/_api_features.json
@@ -133,20 +133,34 @@
       "chrome://bookmarks/*"
     ]
   }],
-  "bookmarks.export": {
+  "bookmarks.export": [{
     "whitelist": [
       "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2", // http://crbug.com/312900
       "D57DE394F36DC1C3220E7604C575D29C51A6C495", // http://crbug.com/319444
       "3F65507A3B39259B38C8173C6FFA3D12DF64CCE9"  // http://crbug.com/371562
     ]
-  },
-  "bookmarks.import": {
+  }, {
+    "channel": "stable",
+    "contexts": ["webui"],
+    "dependencies": [],
+    "matches": [
+      "chrome://bookmarks/*"
+    ]
+  }],
+  "bookmarks.import": [{
     "whitelist": [
       "D5736E4B5CF695CB93A2FB57E4FDC6E5AFAB6FE2", // http://crbug.com/312900
       "D57DE394F36DC1C3220E7604C575D29C51A6C495", // http://crbug.com/319444
       "3F65507A3B39259B38C8173C6FFA3D12DF64CCE9"  // http://crbug.com/371562
     ]
-  },
+  }, {
+    "channel": "stable",
+    "contexts": ["webui"],
+    "dependencies": [],
+    "matches": [
+      "chrome://bookmarks/*"
+    ]
+  }],
   "brailleDisplayPrivate": {
     "dependencies": ["permission:brailleDisplayPrivate"],
     "contexts": ["blessed_extension"]