Fix double-initialization of CComModule.

chrome/browser/accessibility/browser_accessibility_win_unittest.cc

Index: chrome/browser/accessibility/browser_accessibility_win_unittest.cc
===================================================================
--- chrome/browser/accessibility/browser_accessibility_win_unittest.cc	(revision 108608)
+++ chrome/browser/accessibility/browser_accessibility_win_unittest.cc	(working copy)
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "base/memory/scoped_ptr.h"
+#include "base/win/atl_module.h"
 #include "base/win/scoped_comptr.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/accessibility/browser_accessibility_win.h"
@@ -52,12 +53,7 @@
 class BrowserAccessibilityTest : public testing::Test {
  protected:
   virtual void SetUp() {
-    // ATL needs a pointer to a COM module.
-    static CComModule module;
-    _pAtlModule = &module;
-
-    // Make sure COM is initialized for this thread; it's safe to call twice.
-    ::CoInitialize(NULL);
+    base::win::CreateATLModuleIfNeeded();
   }
 
   virtual void TearDown() {