Convert //base to use std::unique_ptr

base/process/process_metrics_unittest_ios.cc

Index: base/process/process_metrics_unittest_ios.cc
diff --git a/base/process/process_metrics_unittest_ios.cc b/base/process/process_metrics_unittest_ios.cc
index 3e1ca35b18c746e4e435fee6c46d0e3b0d087c52..22bd97e79117b8a1f9e5bc57575008ba91968e03 100644
--- a/base/process/process_metrics_unittest_ios.cc
+++ b/base/process/process_metrics_unittest_ios.cc
@@ -4,11 +4,12 @@
 
 #include "base/process/process_metrics.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(ProcessMetricsTestIos, Memory) {
-  scoped_ptr<base::ProcessMetrics> process_metrics(
+  std::unique_ptr<base::ProcessMetrics> process_metrics(
       base::ProcessMetrics::CreateProcessMetrics(
           base::GetCurrentProcessHandle()));