Convert //ash from scoped_ptr to std::unique_ptr

ash/test/test_suite.h

Index: ash/test/test_suite.h
diff --git a/ash/test/test_suite.h b/ash/test/test_suite.h
index 44e043caadc8cf1ed030fc4cbe0fcdba87f49c62..9540f835c9837e4cca7762a64e9b38b81b4b96c3 100644
--- a/ash/test/test_suite.h
+++ b/ash/test/test_suite.h
@@ -5,12 +5,13 @@
 #ifndef ASH_TEST_TEST_SUITE_H_
 #define ASH_TEST_TEST_SUITE_H_
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/test/test_discardable_memory_allocator.h"
 #include "base/test/test_suite.h"
 
 #if defined(OS_WIN)
-#include "base/memory/scoped_ptr.h"
 #include "base/win/scoped_com_initializer.h"
 #endif
 
@@ -29,7 +30,7 @@ class AuraShellTestSuite : public base::TestSuite {
 
  private:
 #if defined(OS_WIN)
-  scoped_ptr<base::win::ScopedCOMInitializer> com_initializer_;
+  std::unique_ptr<base::win::ScopedCOMInitializer> com_initializer_;
 #endif
 
   base::TestDiscardableMemoryAllocator discardable_memory_allocator_;