Move scoped_ole_initializer.h to ui/base/win and clean up ole initialization/uninitialization.

ui/aura/test/aura_test_helper.cc

Index: ui/aura/test/aura_test_helper.cc
diff --git a/ui/aura/test/aura_test_helper.cc b/ui/aura/test/aura_test_helper.cc
index 4eb08ddf592920fd41454e2834dece6595bc781e..dd3f73ae88af972820692093a0a0364736fa8839 100644
--- a/ui/aura/test/aura_test_helper.cc
+++ b/ui/aura/test/aura_test_helper.cc
@@ -4,10 +4,6 @@
 
 #include "ui/aura/test/aura_test_helper.h"
 
-#if defined(OS_WIN)
-#include <ole2.h>
-#endif
-
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/gfx/compositor/layer_animator.h"
@@ -18,18 +14,11 @@ namespace test {
 AuraTestHelper::AuraTestHelper()
     : setup_called_(false),
       teardown_called_(false) {
-#if defined(OS_WIN)
-  OleInitialize(NULL);
-#endif
-
   // Disable animations during tests.
   ui::LayerAnimator::set_disable_animations_for_test(true);
 }
 
 AuraTestHelper::~AuraTestHelper() {
-#if defined(OS_WIN)
-  OleUninitialize();
-#endif
   CHECK(setup_called_)
       << "You have overridden SetUp but never called super class's SetUp";
   CHECK(teardown_called_)