Make vector_as_array use std::vector::data and switch a few directories.

components/policy/core/common/policy_loader_win_unittest.cc

Index: components/policy/core/common/policy_loader_win_unittest.cc
diff --git a/components/policy/core/common/policy_loader_win_unittest.cc b/components/policy/core/common/policy_loader_win_unittest.cc
index 52bd22410862d96b226919446c3d273261734929..a932199aa0ef0f4a6c305874ff45537a5e335da3 100644
--- a/components/policy/core/common/policy_loader_win_unittest.cc
+++ b/components/policy/core/common/policy_loader_win_unittest.cc
@@ -589,10 +589,9 @@ void PRegTestHarness::AppendRecordToPRegFile(const base::string16& path,
   buffer.insert(buffer.end(), data, data + size);
   AppendChars(&buffer, L"]");
 
-  ASSERT_TRUE(base::AppendToFile(
-      preg_file_path_,
-      reinterpret_cast<const char*>(vector_as_array(&buffer)),
-      buffer.size()));
+  ASSERT_TRUE(base::AppendToFile(preg_file_path_,
+                                 reinterpret_cast<const char*>(buffer.data()),
+                                 buffer.size()));
 }
 
 void PRegTestHarness::AppendDWORDToPRegFile(const base::string16& path,
@@ -613,7 +612,7 @@ void PRegTestHarness::AppendStringToPRegFile(const base::string16& path,
   data.push_back(base::ByteSwapToLE16(L'\0'));
 
   AppendRecordToPRegFile(path, key, REG_SZ, data.size() * sizeof(base::char16),
-                         reinterpret_cast<uint8*>(vector_as_array(&data)));
+                         reinterpret_cast<uint8*>(data.data()));
 }
 
 void PRegTestHarness::AppendPolicyToPRegFile(const base::string16& path,