build mini_installer as part of the chromium_builder_perf target on Windows

I want the perf builders to build this so we can track its size.

BUG=457078

Review-Url: https://codereview.chromium.org/1944103002
Cr-Commit-Position: refs/heads/master@{#391656}

diff --git a/BUILD.gn b/BUILD.gn
index 20e052a..24d42fd 100644
--- a/BUILD.gn
+++ b/BUILD.gn

@@ -899,6 +899,7 @@
     if (is_win) {
       deps += [
         # "//gpu:angle_perftests", TODO(GYP): crbug.com/537008
+        "//chrome/installer/mini_installer:mini_installer",
       ]
     } else {
       deps += [ "//breakpad:minidump_stackwalk($host_toolchain)" ]