Exclude a couple of tests that fail under MSan

chrome/browser/resources/pdf/pdf_extension_test.cc

 // Copyright 2014 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/base_paths.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 80 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(PDFExtensionTest, BasicPlugin) {
   RunTestsInFile("basic_plugin_test.js", "test.pdf");
 }
 
 IN_PROC_BROWSER_TEST_F(PDFExtensionTest, Viewport) {
   RunTestsInFile("viewport_test.js", "test.pdf");
 }
 
-IN_PROC_BROWSER_TEST_F(PDFExtensionTest, Bookmark) {
+// Test fails under MSan, http://crbug.com/449995
+#if defined(MEMORY_SANITIZER)
+#define MAYBE_Bookmark DISABLED_Bookmark
+#else
+#define MAYBE_Bookmark Bookmark
+#endif
+IN_PROC_BROWSER_TEST_F(PDFExtensionTest, MAYBE_Bookmark) {
   RunTestsInFile("bookmarks_test.js", "test-bookmarks.pdf");
 }