Make FileVersionInfo return a unique_ptr.

Bug: none
Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: Id324ad0abc178937ce373e03180d2135fe3d2c97
Reviewed-on: https://chromium-review.googlesource.com/c/1235113
Commit-Queue: David Benjamin <davidben@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Reviewed-by: Robert Liao <robliao@chromium.org>
Reviewed-by: Albert J. Wong <ajwong@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626899}

diff --git a/base/file_version_info_win.h b/base/file_version_info_win.h
index d91b67f..4751db1e 100644
--- a/base/file_version_info_win.h
+++ b/base/file_version_info_win.h

@@ -53,6 +53,10 @@
   // Get the fixed file info if it exists. Otherwise NULL
   const VS_FIXEDFILEINFO* fixed_file_info() const { return fixed_file_info_; }
 
+  // Behaves like CreateFileVersionInfo, but returns a FileVersionInfoWin.
+  static std::unique_ptr<FileVersionInfoWin> CreateFileVersionInfoWin(
+      const base::FilePath& file_path);
+
  private:
   friend FileVersionInfo;