Update doc for r368222: url/title field requires "tabs" permission to be

chrome/common/extensions/api/tabs.json

Index: chrome/common/extensions/api/tabs.json
diff --git a/chrome/common/extensions/api/tabs.json b/chrome/common/extensions/api/tabs.json
index 018fe8d1bc00462081db7cc7fe284cf9ef4d25ea..36088897c47a4265a92875c2c8850ad5ebe1ff95 100644
--- a/chrome/common/extensions/api/tabs.json
+++ b/chrome/common/extensions/api/tabs.json
@@ -464,7 +464,7 @@
               "title": {
                 "type": "string",
                 "optional": true,
-                "description": "Match page titles against a pattern."
+                "description": "Match page titles against a pattern. Note that this property is ignored if the extension doesn't have the <code>\"tabs\"</code> permission."
               },
               "url": {
                 "choices": [
@@ -472,7 +472,7 @@
                   {"type": "array", "items": {"type": "string"}}
                 ],
                 "optional": true,
-                "description": "Match tabs against one or more <a href='match_patterns'>URL patterns</a>. Note that fragment identifiers are not matched."
+                "description": "Match tabs against one or more <a href='match_patterns'>URL patterns</a>. Note that fragment identifiers are not matched. Note that this property is ignored if the extension doesn't have the <code>\"tabs\"</code> permission."
               },
               "windowId": {
                 "type": "integer",