Convert //extensions/browser from scoped_ptr to std::unique_ptr

extensions/browser/error_map_unittest.cc

Index: extensions/browser/error_map_unittest.cc
diff --git a/extensions/browser/error_map_unittest.cc b/extensions/browser/error_map_unittest.cc
index a118f6e53c81563dfbc0f5abc14144808c80cdec..2b43f33f97267721ffecc46bd6b006a1da2475db 100644
--- a/extensions/browser/error_map_unittest.cc
+++ b/extensions/browser/error_map_unittest.cc
@@ -6,10 +6,10 @@
 
 #include <stddef.h>
 
+#include <memory>
 #include <utility>
 
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/crx_file/id_util.h"
 #include "extensions/browser/extension_error.h"
@@ -151,7 +151,7 @@ TEST_F(ErrorMapUnitTest, DuplicateErrorsAreReplaced) {
 
   // Create an error identical to the second error reported, save its
   // location, and add it to the error map.
-  scoped_ptr<ExtensionError> runtime_error2 =
+  std::unique_ptr<ExtensionError> runtime_error2 =
       CreateNewRuntimeError(kId, base::UintToString(1u));
   const ExtensionError* weak_error = runtime_error2.get();
   ASSERT_TRUE(errors_.AddError(std::move(runtime_error2)));