Move SecurityInterstitialPage into component

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 30102a31bdf1c65112d8eda9ae4ee443728f9e08..24d429947e799d7178101c3b995ca933be0418f0 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -487,8 +487,6 @@ split_static_library("browser") {
     "interstitials/chrome_controller_client.h",
     "interstitials/chrome_metrics_helper.cc",
     "interstitials/chrome_metrics_helper.h",
-    "interstitials/security_interstitial_page.cc",
-    "interstitials/security_interstitial_page.h",
     "intranet_redirect_detector.cc",
     "intranet_redirect_detector.h",
     "invalidation/profile_invalidation_provider_factory.cc",
@@ -1457,6 +1455,7 @@ split_static_library("browser") {
     "//components/search",
     "//components/search_engines",
     "//components/search_provider_logos",
+    "//components/security_interstitials/content:security_interstitial_page",
     "//components/security_interstitials/core",
     "//components/security_state/content",
     "//components/security_state/core",
@@ -2007,7 +2006,6 @@ split_static_library("browser") {
       "//components/safe_browsing:safe_browsing",
       "//components/safe_browsing/common:common",
       "//components/safe_browsing_db:metadata_proto",
-      "//components/security_interstitials/content:unsafe_resource",
     ]
     if (safe_browsing_mode == 1) {
       # "Safe Browsing Full" files in addition to the "basic" ones to use for