[Extensions Bindings] Add chrome.runtime.lastError support

chrome/test/data/extensions/api_test/native_bindings/extension/background.js

Index: chrome/test/data/extensions/api_test/native_bindings/extension/background.js
diff --git a/chrome/test/data/extensions/api_test/native_bindings/extension/background.js b/chrome/test/data/extensions/api_test/native_bindings/extension/background.js
index 7300d5ce864ff5cf3fc4fed448a471ac9192ef3c..ff1f3e326ae4bcb51cd2a96950d3e71ff93d1275 100644
--- a/chrome/test/data/extensions/api_test/native_bindings/extension/background.js
+++ b/chrome/test/data/extensions/api_test/native_bindings/extension/background.js
@@ -93,7 +93,13 @@ var tests = [
     chrome.test.assertTrue(!!chrome.cast.streaming.udpTransport);
     chrome.test.assertTrue(!!chrome.cast.streaming.udpTransport.setOptions);
     chrome.test.succeed();
-  }
+  },
+  function testLastError() {
+    chrome.runtime.setUninstallURL('chrome://newtab', function() {
+      chrome.test.assertLastError('Invalid URL: "chrome://newtab".');
+      chrome.test.succeed();
+    });
+  },
 ];
 
 chrome.test.getConfig(config => {