Print stack traces in child processes when browser tests failed.

chrome/browser/extensions/error_console/error_console_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 "chrome/browser/extensions/error_console/error_console.h"
 
 #include "base/files/file_path.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/stringprintf.h"
@@ skipping 404 matching lines @@
   CheckStackFrame(stack_trace2[0],
                   script_url,
                   kAnonymousFunction,
                   12u,
                   1u);
 }
 
 // Catch an error from a BrowserAction; this is more complex than a content
 // script error, since browser actions are routed through our own code.
 #if defined(OS_WIN)  // Flakes on XP. http://crbug.com/517029
-#define MAYBE_BrowserActionRuntimeError DISABLED_BrowserActionRuntimeError
+#define MAYBE_BrowserActionRuntimeError BrowserActionRuntimeError
 #else
 #define MAYBE_BrowserActionRuntimeError BrowserActionRuntimeError
 #endif
 IN_PROC_BROWSER_TEST_F(ErrorConsoleBrowserTest,
                        MAYBE_BrowserActionRuntimeError) {
   const Extension* extension = NULL;
   LoadExtensionAndCheckErrors(
       "browser_action_runtime_error",
       kNoFlags,
       1u,  // One error: A reference error from within the browser action.
@@ skipping 144 matching lines @@
 
   const StackTrace& stack_trace = GetStackTraceFromError(errors[0]);
   ASSERT_EQ(1u, stack_trace.size());
   CheckStackFrame(stack_trace[0],
                   script_url,
                   kAnonymousFunction,
                   12u, 20u);
 }
 
 }  // namespace extensions