Implement the Instant extended API startMargin, endMargin, and rtl properties and the onmarginchang…

chrome/renderer/resources/extensions/searchbox/searchbox_api.js

Index: chrome/renderer/resources/extensions/searchbox/searchbox_api.js
diff --git a/chrome/renderer/resources/extensions/searchbox/searchbox_api.js b/chrome/renderer/resources/extensions/searchbox/searchbox_api.js
index 36d30d6d2dcc86a4a4b6f496845fb0924b020cd0..b0940d2b21be4a779c59af4784a9c19a8ea65c98 100644
--- a/chrome/renderer/resources/extensions/searchbox/searchbox_api.js
+++ b/chrome/renderer/resources/extensions/searchbox/searchbox_api.js
@@ -29,6 +29,9 @@ if (!chrome.searchBox) {
     native function GetY();
     native function GetWidth();
     native function GetHeight();
+    native function GetStartMargin();
+    native function GetEndMargin();
+    native function GetRightToLeft();
     native function GetAutocompleteResults();
     native function GetIsFocused();
     native function GetContext();
@@ -176,6 +179,9 @@ if (!chrome.searchBox) {
     this.__defineGetter__('y', GetY);
     this.__defineGetter__('width', GetWidth);
     this.__defineGetter__('height', GetHeight);
+    this.__defineGetter__('startMargin', GetStartMargin);
+    this.__defineGetter__('endMargin', GetEndMargin);
+    this.__defineGetter__('rtl', GetRightToLeft);
     this.__defineGetter__('nativeSuggestions', GetAutocompleteResultsWrapper);
     this.__defineGetter__('isFocused', GetIsFocused);
     this.__defineGetter__('context', GetContext);
@@ -216,5 +222,6 @@ if (!chrome.searchBox) {
     this.onfocus = null;
     this.onblur = null;
     this.oncontextchange = null;
+    this.onmarginchange = null;
   };
 }