Implement 'Do Not Track' header

chrome/browser/do_not_track_browsertest.cc

Index: chrome/browser/do_not_track_browsertest.cc
diff --git a/chrome/browser/do_not_track_browsertest.cc b/chrome/browser/do_not_track_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f1b391d4391b75eb371b074a6ba7d3261c7ff515
--- /dev/null
+++ b/chrome/browser/do_not_track_browsertest.cc
@@ -0,0 +1,55 @@
+// Copyright (c) 2012 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 "base/string16.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_tabstrip.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/ui_test_utils.h"
+
+typedef InProcessBrowserTest DoNotTrackTest;
+
+// Check that the DNT header is sent when the corresponding preference is set.
+IN_PROC_BROWSER_TEST_F(DoNotTrackTest, Simple) {
+  ASSERT_TRUE(test_server()->Start());
+
+  PrefService* prefs = browser()->profile()->GetPrefs();
+  prefs->SetBoolean(prefs::kEnableDoNotTrack, true);
+
+  GURL url = test_server()->GetURL("echoheader?DNT");
+  ui_test_utils::NavigateToURL(browser(), url);
+
+  int matches = ui_test_utils::FindInPage(
+      chrome::GetActiveTabContents(browser()),
+      string16(ASCIIToUTF16("1")),
+      true /* forward */, false /* match case */, NULL /* ordinal */,
+      NULL /* selection_rect */);
+
+  EXPECT_EQ(1, matches);
+}
+
+// Check that the DNT header is preserved during redirects.
+IN_PROC_BROWSER_TEST_F(DoNotTrackTest, Redirect) {
+  ASSERT_TRUE(test_server()->Start());
+
+  PrefService* prefs = browser()->profile()->GetPrefs();
+  prefs->SetBoolean(prefs::kEnableDoNotTrack, true);
+
+  GURL final_url = test_server()->GetURL("echoheader?DNT");
+  GURL url = test_server()->GetURL(
+      std::string("server-redirect?") + final_url.spec());
+  ui_test_utils::NavigateToURL(browser(), url);
+
+  int matches = ui_test_utils::FindInPage(
+      chrome::GetActiveTabContents(browser()),
+      string16(ASCIIToUTF16("1")),
+      true /* forward */, false /* match case */, NULL /* ordinal */,
+      NULL /* selection_rect */);
+
+  EXPECT_EQ(1, matches);
+}