Add support for XMLHttpRequests to the webRequest API

chrome/browser/extensions/extension_webrequest_api.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_webrequest_api.h"
 
 #include <algorithm>
 
 #include "base/json/json_writer.h"
 #include "base/metrics/histogram.h"
@@ skipping 39 matching lines @@
   keys::kOnResponseStarted,
 };
 
 static const char* kResourceTypeStrings[] = {
   "main_frame",
   "sub_frame",
   "stylesheet",
   "script",
   "image",
   "object",
+  "xmlhttprequest",
+  "other",
   "other",
 };
 
 static ResourceType::Type kResourceTypeValues[] = {
   ResourceType::MAIN_FRAME,
   ResourceType::SUB_FRAME,
   ResourceType::STYLESHEET,
   ResourceType::SCRIPT,
   ResourceType::IMAGE,
   ResourceType::OBJECT,
+  ResourceType::XHR,
+  ResourceType::SUB_RESOURCE,

[Matt Perry, 2011/08/09 16:58:42]

this needs to be LAST_TYPE since we look up type based on the string. also,
please add a comment explaining why we double the last entry.

   ResourceType::LAST_TYPE,  // represents "other"
 };
 
 COMPILE_ASSERT(
     arraysize(kResourceTypeStrings) == arraysize(kResourceTypeValues),
     keep_resource_types_in_sync);
 
 #define ARRAYEND(array) (array + arraysize(array))
 
 // NetLog parameter to indicate the ID of the extension that caused an event.
@@ skipping 1337 matching lines @@
       }
     }
   }
 
   ExtensionWebRequestEventRouter::GetInstance()->OnEventHandled(
       profile(), extension_id(), event_name, sub_event_name, request_id,
       response.release());
 
   return true;
 }