Add support for XMLHttpRequests to the webRequest API

chrome/test/data/extensions/api_test/webrequest/events/test.html

Index: chrome/test/data/extensions/api_test/webrequest/events/test.html
diff --git a/chrome/test/data/extensions/api_test/webrequest/events/test.html b/chrome/test/data/extensions/api_test/webrequest/events/test.html
index e7fcb960a6dd0f3c2aaf4482a755db9059fc3947..738e55a7b06a8819860054fd3f17b3dbe1afc9ea 100644
--- a/chrome/test/data/extensions/api_test/webrequest/events/test.html
+++ b/chrome/test/data/extensions/api_test/webrequest/events/test.html
@@ -16,6 +16,10 @@ var URL_ECHO_USER_AGENT =
     'http://www.a.com:PORT/echoheader?User-Agent';
 var URL_AUTH_REQUIRED =
     'http://www.a.com:PORT/auth-basic';
+var URL_HTTP_XHR =
+    'http://www.a.com:PORT/files/extensions/api_test/webrequest/events/xhr/a.html';
+var URL_HTTP_XHR_DATA =
+    'http://www.a.com:PORT/files/extensions/api_test/webrequest/events/xhr/data.json';
 
 function runTests(tests) {
   chrome.tabs.getSelected(null, function(tab) {
@@ -28,6 +32,8 @@ function runTests(tests) {
       URL_HTTP_SIMPLE_LOAD_REDIRECT = fixPort(URL_HTTP_SIMPLE_LOAD_REDIRECT);
       URL_ECHO_USER_AGENT = fixPort(URL_ECHO_USER_AGENT);
       URL_AUTH_REQUIRED = fixPort(URL_AUTH_REQUIRED);
+      URL_HTTP_XHR = fixPort(URL_HTTP_XHR);
+      URL_HTTP_XHR_DATA = fixPort(URL_HTTP_XHR_DATA);
 
       chrome.test.runTests(tests);
     });
@@ -382,6 +388,100 @@ runTests([
     navigateAndWait(URL_HTTP_SIMPLE_LOAD_REDIRECT);
   },
 
+  // Navigates to a page to generates an XHR.
+  function xhrLoad() {
+    expect(
+      [  // events
+        { label: "onBeforeRequest-1",
+          event: "onBeforeRequest",
+          details: {
+            method: "GET",
+            tabId: tabId,
+            type: "main_frame",
+            url: URL_HTTP_XHR,
+            frameUrl: URL_HTTP_XHR
+          }
+        },
+        { label: "onBeforeSendHeaders-1",
+          event: "onBeforeSendHeaders",
+          details: {
+            url: URL_HTTP_XHR,
+          }
+        },
+        { label: "onSendHeaders-1",
+          event: "onSendHeaders",
+          details: {
+            url: URL_HTTP_XHR,
+          }
+        },
+        { label: "onResponseStarted-1",
+          event: "onResponseStarted",
+          details: {
+            url: URL_HTTP_XHR,
+            statusCode: 200,
+            ip: "127.0.0.1",
+            fromCache: false,
+          }
+        },
+        { label: "onCompleted-1",
+          event: "onCompleted",
+          details: {
+            url: URL_HTTP_XHR,
+            statusCode: 200,
+            ip: "127.0.0.1",
+            fromCache: false,
+          }
+        },
+        { label: "onBeforeRequest-2",
+          event: "onBeforeRequest",
+          details: {
+            method: "GET",
+            tabId: tabId,
+            type: "xhr",
+            url: URL_HTTP_XHR_DATA,
+            frameUrl: URL_HTTP_XHR
+          }
+        },
+        { label: "onBeforeSendHeaders-2",
+          event: "onBeforeSendHeaders",
+          details: {
+            url: URL_HTTP_XHR_DATA,
+          }
+        },
+        { label: "onSendHeaders-2",
+          event: "onSendHeaders",
+          details: {
+            url: URL_HTTP_XHR_DATA,
+          }
+        },
+        { label: "onResponseStarted-2",
+          event: "onResponseStarted",
+          details: {
+            url: URL_HTTP_XHR_DATA,
+            statusCode: 200,
+            ip: "127.0.0.1",
+            fromCache: false,
+          }
+        },
+        { label: "onCompleted-2",
+          event: "onCompleted",
+          details: {
+            url: URL_HTTP_XHR_DATA,
+            statusCode: 200,
+            ip: "127.0.0.1",
+            fromCache: false,
+          }
+        }
+      ],
+      [  // event order
+        ["onBeforeRequest-1", "onBeforeSendHeaders-1", "onSendHeaders-1",
+         "onResponseStarted-1", "onCompleted-1",
+         "onBeforeRequest-2", "onBeforeSendHeaders-2", "onSendHeaders-2",
+         "onResponseStarted-2", "onCompleted-2"] ],
+      {}, []);
+    navigateAndWait(URL_HTTP_XHR);
+  },
+
   // Navigates to a page with subresources.
   // TODO(mpcomplete): add multiple subresources; requires support for
   // recognizing partial ordering.