Fix scoped_ptr free to use delete [] instead of delete.

BUG=101717

Review URL: https://codereview.chromium.org/1055433003

Cr-Commit-Position: refs/heads/master@{#324013}

sandbox/win/src/win_utils.cc

@@ -351,22 +351,21 @@ bool GetPathFromHandle(HANDLE handle, base::string16* path) {
   NtQueryObjectFunction NtQueryObject = NULL;
   ResolveNTFunctionPtr("NtQueryObject", &NtQueryObject);
 
-  OBJECT_NAME_INFORMATION initial_buffer;
-  OBJECT_NAME_INFORMATION* name = &initial_buffer;
-  ULONG size = sizeof(initial_buffer);
+  OBJECT_NAME_INFORMATION* name = NULL;
+  ULONG size = 0;
   // Query the name information a first time to get the size of the name.
   NTSTATUS status = NtQueryObject(handle, ObjectNameInformation, name, size,
                                   &size);
 
-  scoped_ptr<OBJECT_NAME_INFORMATION> name_ptr;
-  if (size) {
-    name = reinterpret_cast<OBJECT_NAME_INFORMATION*>(new BYTE[size]);
-    name_ptr.reset(name);
+  if (!size)
+    return false;
+
+  scoped_ptr<BYTE[]> name_ptr(new BYTE[size]);
+  name = reinterpret_cast<OBJECT_NAME_INFORMATION*>(name_ptr.get());
 
   // Query the name information a second time to get the name of the
   // object referenced by the handle.
   status = NtQueryObject(handle, ObjectNameInformation, name, size, &size);
-  }
 
   if (STATUS_SUCCESS != status)
     return false;