| Index: chrome/browser/extensions/platform_app_browsertest_util.cc
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| diff --git a/chrome/browser/extensions/platform_app_browsertest_util.cc b/chrome/browser/extensions/platform_app_browsertest_util.cc
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| index a722eb590f43465756c4dcc0d13fa7a596aad27a..fbfee5ef08c81de6c6451fc814a1ee713ea9f122 100644
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| --- a/chrome/browser/extensions/platform_app_browsertest_util.cc
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| +++ b/chrome/browser/extensions/platform_app_browsertest_util.cc
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| @@ -27,6 +27,12 @@ void PlatformAppBrowserTest::SetUpCommandLine(CommandLine* command_line) {
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|    command_line->AppendSwitch(switches::kEnableExperimentalExtensionApis);
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|  }
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|  
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| +void PlatformAppBrowserTest::SetUpOnMainThread() {
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| +  mock_external_url_controller_.reset(new MockExternalUrlController());
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| +  ShellWindow::SetExternalUrlControllerForTesting(
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| +      mock_external_url_controller_.get());
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| +}
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| +
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|  const Extension* PlatformAppBrowserTest::LoadAndLaunchPlatformApp(
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|      const char* name) {
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|    content::WindowedNotificationObserver app_loaded_observer(
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| 
 |