Modified comment in PlatformAppBrowserTest.WindowDotPrintWorks.

chrome/browser/apps/app_browsertest.cc

 // Copyright 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.
 
 #include "apps/launcher.h"
 #include "apps/native_app_window.h"
 #include "apps/shell_window.h"
 #include "apps/shell_window_registry.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1026 matching lines @@
       GetRenderWidgetHostView()->HasFocus());
 }
 
 // The next test will only run automatically with Chrome branded builds because
 // it requires the PDF preview plug-in. To run this test manually for Chromium
 // builds (non-Chrome branded) in a development environment:
 //
 //   1) Remove "MAYBE_" in the first line of the test definition
 //   2) Build Chromium browser_tests
 //   3) Make a copy of the PDF plug-in from a recent version of Chrome (Canary
-//      or recent development build) to your Chromium build. On Linux and Chrome
-//      OS, this just involves copying /opt/google.chrome/libpdf.so to
-//      <path-to-your-src>/out/Debug.
+//      or a recent development build) to your Chromium build:
+//      - On Linux and Chrome OS, copy /opt/google.chrome/libpdf.so to
+//        <path-to-your-src>/out/Debug
+//      - On OS X, copy PDF.plugin from
+//        <recent-chrome-app-folder>/*/*/*/*/"Internet Plug-Ins" to
+//        <path-to-your-src>/out/Debug/Chromium.app/*/*/*/*/"Internet Plug-Ins"
 //   4) Run browser_tests with the --enable-print-preview flag
 
 #if !defined(GOOGLE_CHROME_BUILD)
 #define MAYBE_WindowDotPrintWorks DISABLED_WindowDotPrintWorks
 #else
 #define MAYBE_WindowDotPrintWorks WindowDotPrintWorks
 #endif
 
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, MAYBE_WindowDotPrintWorks) {
   PrintPreviewUI::SetAutoCancelForTesting(true);
@@ skipping 57 matching lines @@
 
   while (!ContainsKey(opener_app_ids_, file_manager->id())) {
     content::RunAllPendingInMessageLoop();
   }
 }
 
 #endif  // defined(OS_CHROMEOS)
 
 
 }  // namespace extensions