[iOS] Upstream web_controller_provider_impl.{h,mm}.

ios/public/provider/chrome/browser/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//ios/public/provider/chrome/browser/build_config.gni")
 
 source_set("browser") {
   sources = [
     "chrome_browser_provider.h",
@@ skipping 50 matching lines @@
   public_deps = [
     ":provider_flags",
   ]
 
   deps = [
     "//base",
     "//components/autofill/core/browser",
     "//components/favicon_base",
     "//components/metrics",
     "//components/sync_sessions",
-    "//ios/public/provider/web",
     "//ios/web",
     "//url",
   ]
 
   libs = [
     "CoreGraphics.framework",
     "CoreLocation.framework",
     "Foundation.framework",
   ]
 }
@@ skipping 44 matching lines @@
     "//base",
     "//components/signin/ios/browser:test_support",
     "//components/sync_sessions",
     "//ios/chrome/app/theme",
     "//testing/gtest",
   ]
   public_deps = [
     "//testing/gmock",
   ]
 }