Split up ios/web:test_support.

ios/chrome/browser/ui/ntp/recent_tabs/BUILD.gn

Index: ios/chrome/browser/ui/ntp/recent_tabs/BUILD.gn
diff --git a/ios/chrome/browser/ui/ntp/recent_tabs/BUILD.gn b/ios/chrome/browser/ui/ntp/recent_tabs/BUILD.gn
index 782cb8db263143098fa7422f0211a3860d0ded29..4cf4957876b45b960a556da621acf2ce4eb2dd75 100644
--- a/ios/chrome/browser/ui/ntp/recent_tabs/BUILD.gn
+++ b/ios/chrome/browser/ui/ntp/recent_tabs/BUILD.gn
@@ -71,7 +71,7 @@ source_set("unit_tests") {
     "//ios/chrome/browser/sync:test_support",
     "//ios/chrome/browser/ui/ntp:ntp_internal",
     "//ios/chrome/test:test_support",
-    "//ios/web:test_support",
+    "//ios/web/public/test",
     "//testing/gtest",
     "//third_party/ocmock",
   ]
@@ -91,7 +91,7 @@ source_set("eg_tests") {
     "//ios/chrome/test/app:test_support",
     "//ios/chrome/test/earl_grey:test_support",
     "//ios/third_party/earl_grey",
-    "//ios/web:test_support",
+    "//ios/web/public/test/http_server",
   ]
   libs = [ "XCTest.framework" ]
 }