Convert //base to use std::unique_ptr

base/files/memory_mapped_file_unittest.cc

Index: base/files/memory_mapped_file_unittest.cc
diff --git a/base/files/memory_mapped_file_unittest.cc b/base/files/memory_mapped_file_unittest.cc
index f75686f74bf43a144990a24ec7beb72dcda899aa..396ab72fbcb91a71795704747d130f6f0fb569cb 100644
--- a/base/files/memory_mapped_file_unittest.cc
+++ b/base/files/memory_mapped_file_unittest.cc
@@ -19,8 +19,8 @@ namespace base {
 namespace {
 
 // Create a temporary buffer and fill it with a watermark sequence.
-scoped_ptr<uint8_t[]> CreateTestBuffer(size_t size, size_t offset) {
-  scoped_ptr<uint8_t[]> buf(new uint8_t[size]);
+std::unique_ptr<uint8_t[]> CreateTestBuffer(size_t size, size_t offset) {
+  std::unique_ptr<uint8_t[]> buf(new uint8_t[size]);
   for (size_t i = 0; i < size; ++i)
     buf.get()[i] = static_cast<uint8_t>((offset + i) % 253);
   return buf;
@@ -28,7 +28,7 @@ scoped_ptr<uint8_t[]> CreateTestBuffer(size_t size, size_t offset) {
 
 // Check that the watermark sequence is consistent with the |offset| provided.
 bool CheckBufferContents(const uint8_t* data, size_t size, size_t offset) {
-  scoped_ptr<uint8_t[]> test_data(CreateTestBuffer(size, offset));
+  std::unique_ptr<uint8_t[]> test_data(CreateTestBuffer(size, offset));
   return memcmp(test_data.get(), data, size) == 0;
 }
 
@@ -46,7 +46,7 @@ class MemoryMappedFileTest : public PlatformTest {
               File::FLAG_CREATE_ALWAYS | File::FLAG_READ | File::FLAG_WRITE);
     EXPECT_TRUE(file.IsValid());
 
-    scoped_ptr<uint8_t[]> test_data(CreateTestBuffer(size, 0));
+    std::unique_ptr<uint8_t[]> test_data(CreateTestBuffer(size, 0));
     size_t bytes_written =
         file.Write(0, reinterpret_cast<char*>(test_data.get()), size);
     EXPECT_EQ(size, bytes_written);