MD Bookmarks: Disable 'Open in Incognito Window' when Incognito is disabled

chrome/browser/ui/webui/md_bookmarks/md_bookmarks_browsertest.cc

Index: chrome/browser/ui/webui/md_bookmarks/md_bookmarks_browsertest.cc
diff --git a/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_browsertest.cc b/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fa9ce17a176a60958f79f7f7f3bee2b4e85a33c7
--- /dev/null
+++ b/chrome/browser/ui/webui/md_bookmarks/md_bookmarks_browsertest.cc
@@ -0,0 +1,48 @@
+// Copyright 2017 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/ui/webui/md_bookmarks/md_bookmarks_browsertest.h"
+
+#include "chrome/browser/prefs/incognito_mode_prefs.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/common/pref_names.h"
+#include "components/prefs/pref_service.h"
+
+MdBookmarksBrowserTest::MdBookmarksBrowserTest() {}
+
+MdBookmarksBrowserTest::~MdBookmarksBrowserTest() {}
+
+void MdBookmarksBrowserTest::RegisterMessages() {
+  web_ui()->RegisterMessageCallback(
+      "testSetIncognito",
+      base::Bind(&MdBookmarksBrowserTest::HandleSetIncognitoAvailability,
+                 base::Unretained(this)));
+}
+
+void MdBookmarksBrowserTest::SetIncognitoAvailability(int availability) {
+  ASSERT_TRUE(availability >= 0 &&
+              availability < IncognitoModePrefs::AVAILABILITY_NUM_TYPES);
+  browser()->profile()->GetPrefs()->SetInteger(
+      prefs::kIncognitoModeAvailability, availability);
+}
+
+void MdBookmarksBrowserTest::HandleSetIncognitoAvailability(
+    const base::ListValue* args) {
+  AllowJavascript();
+
+  ASSERT_EQ(2U, args->GetSize());
+  const base::Value* callback_id;
+  ASSERT_TRUE(args->Get(0, &callback_id));
+  int pref_value;
+  ASSERT_TRUE(args->GetInteger(1, &pref_value));
+
+  SetIncognitoAvailability(pref_value);
+
+  ResolveJavascriptCallback(*callback_id, base::Value());
+}
+
+content::WebUIMessageHandler* MdBookmarksBrowserTest::GetMockMessageHandler() {
+  return this;
+}