Make MB aware of iOS bot configs and get iOS working.

ios/web/BUILD.gn

Index: ios/web/BUILD.gn
diff --git a/ios/web/BUILD.gn b/ios/web/BUILD.gn
index 9eb1a11c9f7578f2a823c15df9698f86d43b6d05..0e5eacd049aa0a18be7cedcd0655f80aee50fea1 100644
--- a/ios/web/BUILD.gn
+++ b/ios/web/BUILD.gn
@@ -84,6 +84,8 @@ source_set("web") {
     "navigation/time_smoother.h",
     "navigation/web_load_params.h",
     "navigation/web_load_params.mm",
+    "net/cert_host_pair.cc",
+    "net/cert_host_pair.h",
     "net/cert_policy.cc",
     "net/cert_store_impl.cc",
     "net/cert_store_impl.h",
@@ -107,8 +109,6 @@ source_set("web") {
     "net/clients/crw_redirect_network_client_factory.mm",
     "net/cookie_notification_bridge.h",
     "net/cookie_notification_bridge.mm",
-    "net/crw_cert_policy_cache.h",
-    "net/crw_cert_policy_cache.mm",
     "net/crw_cert_verification_controller.h",
     "net/crw_cert_verification_controller.mm",
     "net/crw_request_tracker_delegate.h",
@@ -336,6 +336,7 @@ source_set("test_support") {
     "//ios/third_party/gcdwebserver",
     "//testing/gmock",
     "//testing/gtest",
+    "//third_party/google_toolbox_for_mac",
     "//third_party/ocmock",
     ":web",
   ]
@@ -386,6 +387,7 @@ test("ios_web_unittests") {
     "//net:test_support",
     "//testing/gmock",
     "//testing/gtest",
+    "//third_party/google_toolbox_for_mac",
     "//third_party/ocmock",
     "//ui/base:test_support",
     "//ios/testing:ocmock_support",
@@ -411,7 +413,6 @@ test("ios_web_unittests") {
     "net/clients/crw_csp_network_client_unittest.mm",
     "net/clients/crw_js_injection_network_client_unittest.mm",
     "net/clients/crw_passkit_network_client_unittest.mm",
-    "net/crw_cert_policy_cache_unittest.mm",
     "net/crw_cert_verification_controller_unittest.mm",
     "net/crw_url_verifying_protocol_handler_unittest.mm",
     "net/request_group_util_unittest.mm",