Change nonstd::unique_ptr to take a custom deleter.

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index bba48180a910d246ed6e2939219951db4a12fb0a..5804ab1defe0d6bec797cda89ea103a0d4158b4c 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -735,6 +735,7 @@ test("pdfium_unittests") {
     "core/src/fxcodec/codec/fx_codec_jpx_unittest.cpp",
     "core/src/fxcrt/fx_basic_bstring_unittest.cpp",
     "core/src/fxcrt/fx_basic_memmgr_unittest.cpp",
+    "core/src/fxcrt/fx_basic_unique_ptr_unittest.cpp",

[Tom Sepez, 2015/09/18 23:29:32]

I guess this is OK, I might like it better if it were in the same directory as
unique_ptr.h itself, as FX doesn't have any code actually in this test. Does
that torque the build?

[Lei Zhang, 2015/09/18 23:51:51]

Moved over to third_party/base/nonstd_unique_ptr_unittest.cpp.

     "core/src/fxcrt/fx_basic_wstring_unittest.cpp",
     "core/src/fxcrt/fx_bidi_unittest.cpp",
     "core/src/fxcrt/fx_system_unittest.cpp",