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

extensions/browser/extension_error_test_util.h

Index: extensions/browser/extension_error_test_util.h
diff --git a/extensions/browser/extension_error_test_util.h b/extensions/browser/extension_error_test_util.h
index 6ea2da65d449476a9cd18cbb05a13fa5fd16a1a9..1d5e272cf2ae1478e0838b4e3a3b19385e21b678 100644
--- a/extensions/browser/extension_error_test_util.h
+++ b/extensions/browser/extension_error_test_util.h
@@ -5,9 +5,9 @@
 #ifndef EXTENSIONS_BROWSER_EXTENSION_ERROR_TEST_UTIL_H_
 #define EXTENSIONS_BROWSER_EXTENSION_ERROR_TEST_UTIL_H_
 
+#include <memory>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 
 namespace extensions {
 
@@ -16,17 +16,18 @@ class ExtensionError;
 namespace error_test_util {
 
 // Create a new RuntimeError.
-scoped_ptr<ExtensionError> CreateNewRuntimeError(
+std::unique_ptr<ExtensionError> CreateNewRuntimeError(
     const std::string& extension_id,
     const std::string& message,
     bool from_incognito);
 
 // Create a new RuntimeError; incognito defaults to "false".
-scoped_ptr<ExtensionError> CreateNewRuntimeError(
-    const std::string& extension_id, const std::string& message);
+std::unique_ptr<ExtensionError> CreateNewRuntimeError(
+    const std::string& extension_id,
+    const std::string& message);
 
 // Create a new ManifestError.
-scoped_ptr<ExtensionError> CreateNewManifestError(
+std::unique_ptr<ExtensionError> CreateNewManifestError(
     const std::string& extension_id,
     const std::string& message);