[SSL] Componentize MITMSoftwareBlockingPage

All //chrome-level dependencies have been cleaned in a preceding CL.

Bug: 1030692
Change-Id: Ice24a7c19661f54d9b1fd081cc88a0c0237cc0e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1992070
Reviewed-by: Carlos IL <[email protected]>
Commit-Queue: Colin Blundell <[email protected]>
Cr-Commit-Position: refs/heads/master@{#731283}
diff --git a/components/security_interstitials/content/BUILD.gn b/components/security_interstitials/content/BUILD.gn
index f349c31..2c330c4 100644
--- a/components/security_interstitials/content/BUILD.gn
+++ b/components/security_interstitials/content/BUILD.gn
@@ -19,6 +19,8 @@
     "connection_help_ui.h",
     "known_interception_disclosure_ui.cc",
     "known_interception_disclosure_ui.h",
+    "mitm_software_blocking_page.cc",
+    "mitm_software_blocking_page.h",
     "origin_policy_interstitial_page.cc",
     "origin_policy_interstitial_page.h",
     "origin_policy_ui.cc",