Support redirects by regular expression in declarative WebRequest API

chrome/test/data/extensions/api_test/webrequest/test_declarative.js

Index: chrome/test/data/extensions/api_test/webrequest/test_declarative.js
diff --git a/chrome/test/data/extensions/api_test/webrequest/test_declarative.js b/chrome/test/data/extensions/api_test/webrequest/test_declarative.js
index e6e621f0b479d6c90bbbfe68f7363e9c5b15ed52..c8668f4164d64579a6cd7f6b6c001d8f2497a442 100644
--- a/chrome/test/data/extensions/api_test/webrequest/test_declarative.js
+++ b/chrome/test/data/extensions/api_test/webrequest/test_declarative.js
@@ -7,6 +7,7 @@ var AddResponseHeader =
     chrome.declarativeWebRequest.AddResponseHeader;
 var RequestMatcher = chrome.declarativeWebRequest.RequestMatcher;
 var CancelRequest = chrome.declarativeWebRequest.CancelRequest;
+var RedirectByRegEx = chrome.declarativeWebRequest.RedirectByRegEx;
 var RedirectRequest = chrome.declarativeWebRequest.RedirectRequest;
 var RedirectToTransparentImage =
     chrome.declarativeWebRequest.RedirectToTransparentImage;
@@ -30,6 +31,10 @@ function getURLHttpSimple() {
   return getServerURL("files/extensions/api_test/webrequest/simpleLoad/a.html");
 }
 
+function getURLHttpSimpleB() {
+  return getServerURL("files/extensions/api_test/webrequest/simpleLoad/b.html");
+}
+
 function getURLHttpComplex() {
   return getServerURL(
       "files/extensions/api_test/webrequest/complexLoad/a.html");
@@ -186,6 +191,32 @@ runTests([
     );
   },
 
+  function testRedirectByRegEx() {
+    ignoreUnexpected = true;
+    expect(
+      [
+        { label: "onCompleted",
+          event: "onCompleted",
+          details: {
+            ip: "127.0.0.1",
+            url: getURLHttpSimpleB(),
+            fromCache: false,
+            statusCode: 200,
+            statusLine: "HTTP/1.0 200 OK",
+          }
+        },
+      ],
+      [ ["onCompleted"] ]);
+
+    onRequest.addRules(
+      [ {conditions: [new RequestMatcher({url: {pathSuffix: ".html"}})],
+         actions: [
+             new RedirectByRegEx({from: "^(.*)/a.html$", to: "$1/b.html"})]}
+      ],
+      function() {navigateAndWait(getURLHttpSimple());}
+    );
+  },
+
   function testSetRequestHeader() {
     ignoreUnexpected = true;
     expect();  // Used for initialization.