[subresource_filter] add //chrome level unit test harness

components/subresource_filter/content/browser/BUILD.gn

Index: components/subresource_filter/content/browser/BUILD.gn
diff --git a/components/subresource_filter/content/browser/BUILD.gn b/components/subresource_filter/content/browser/BUILD.gn
index c5c7c8873019f78d393587a62c34f45528a72d08..e55b68ee4bf521171f79db9ba17b5bb6126bcf46 100644
--- a/components/subresource_filter/content/browser/BUILD.gn
+++ b/components/subresource_filter/content/browser/BUILD.gn
@@ -50,12 +50,19 @@ static_library("test_support") {
   sources = [
     "async_document_subresource_filter_test_utils.cc",
     "async_document_subresource_filter_test_utils.h",
+    "fake_safe_browsing_database_manager.cc",
+    "fake_safe_browsing_database_manager.h",
   ]
   deps = [
     ":browser",
     "//base/test:test_support",
     "//components/subresource_filter/core/common",
+    "//content/public/browser",
     "//testing/gtest:gtest",
+    "//url",
+  ]
+  public_deps = [
+    "//components/safe_browsing_db:test_database_manager",
   ]
 }
 
@@ -75,7 +82,6 @@ source_set("unit_tests") {
     ":browser",
     ":test_support",
     "//base/test:test_support",
-    "//components/safe_browsing_db:test_database_manager",
     "//components/safe_browsing_db:util",
     "//components/subresource_filter/content/common",
     "//components/subresource_filter/core/browser",