Remove some unnecessary dependencies on net from app/win_util and app/resourc...

app/win_util_unittest.cc

Index: app/win_util_unittest.cc
===================================================================
--- app/win_util_unittest.cc	(revision 41378)
+++ app/win_util_unittest.cc	(working copy)
@@ -82,13 +82,3 @@
   {L"f.jpg",     L"",      L"jpg", L"f.jpg"},
   {L"f.jpeg",    L"",      L"jpg", L"f.jpeg"},
 };
-
-TEST(WinUtilTest, AppendingExtensions) {
-  for (unsigned int i = 0; i < arraysize(filename_cases); ++i) {
-    const filename_case& value = filename_cases[i];
-    std::wstring result =
-        win_util::AppendExtensionIfNeeded(value.filename, value.filter_selected,
-                                          value.suggested_ext);
-    EXPECT_EQ(value.result, result);
-  }
-}