Download autocheckout whitelist and enable autocheckout for whitelisted sites only.

chrome/browser/autofill/autocheckout/whitelist_manager.h

Index: chrome/browser/autofill/autocheckout/whitelist_manager.h
diff --git a/chrome/browser/autofill/autocheckout/whitelist_manager.h b/chrome/browser/autofill/autocheckout/whitelist_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..94f737a4cc9efbe320a50b0614320172cf3acdad
--- /dev/null
+++ b/chrome/browser/autofill/autocheckout/whitelist_manager.h
@@ -0,0 +1,80 @@
+// Copyright (c) 2013 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.
+
+#ifndef CHROME_BROWSER_AUTOFILL_AUTOCHECKOUT_WHITELIST_MANAGER_H_
+#define CHROME_BROWSER_AUTOFILL_AUTOCHECKOUT_WHITELIST_MANAGER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/gtest_prod_util.h"

[ahutter, 2013/01/19 02:07:16]

Where are you using this?

[benquan, 2013/01/23 23:50:53]

Done.

+#include "base/memory/ref_counted.h"
+#include "base/supports_user_data.h"
+#include "base/time.h"
+#include "net/url_request/url_fetcher_delegate.h"
+
+class GURL;
+
+namespace content {
+class BrowserContext;
+}
+
+namespace net {
+class URLRequestContextGetter;
+class URLFetcher;
+}
+
+namespace autocheckout {
+
+// WhitelistManager is responsible for download and caching autocheckout

[ahutter, 2013/01/19 02:07:16]

nit: Autocheckout

[benquan, 2013/01/23 23:50:53]

Done.

+// whitelist from the server.
+class WhitelistManager : public net::URLFetcherDelegate,
+                         public base::SupportsUserData::Data {

[ahutter, 2013/01/19 02:07:16]

Comments in SupportsUserData say you need a virtual destructor.

[benquan, 2013/01/23 23:50:53]

That comment seems not necessary, because virtual-ness propagates to derived
classes automatically. base::SupportsUserData::Data already has a virtual dtor,
so the any derived class's dtor is virtual automatically, even if you do not
specifically defined one.

+ public:
+
+  static WhitelistManager* GetForBrowserContext(
+      content::BrowserContext* context);
+  static void RemoveFromBrowserContext(
+      content::BrowserContext* context);
+
+  // Checks if the given url is whitelisted.
+  bool IsAutocheckoutEnabled(const GURL& url);
+
+ private:
+  explicit WhitelistManager(net::URLRequestContextGetter* context_getter);
+
+  // Download whitelist file from the server and build memory cache.
+  // Returns true if net::URLFetcher query is initiated.
+  bool DownloadWhitelist();
+
+  // Implements net::URLFetcherDelegate.
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
+
+  // Parse whitelist data and build whitelist
+  void BuildWhitelist(const std::string& data);
+
+  // The context for the request.
+  scoped_refptr<net::URLRequestContextGetter> context_getter_;
+
+  // Time when next whitelist query is allowed.
+  base::Time next_query_request_;
+
+  // State of the kEnableExperimentalFormFilling flag.
+  const bool experimental_form_filling_enabled_;
+
+  // The request object.
+  scoped_ptr<net::URLFetcher> request_;
+
+  // A list of whitelisted url prefixes.
+  std::vector<std::string> url_prefixes_;
+
+  friend class WhitelistManagerTest;
+
+  DISALLOW_COPY_AND_ASSIGN(WhitelistManager);
+};
+
+}  // namespace autocheckout
+
+#endif  // CHROME_BROWSER_AUTOFILL_AUTOCHECKOUT_WHITELIST_MANAGER_H_
+