Add a NavigationThrottle to the public content/ interface

components/navigation_interception/BUILD.gn

 # Copyright 2014 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.
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 source_set("navigation_interception") {
   sources = [
-    "intercept_navigation_resource_throttle.cc",
-    "intercept_navigation_resource_throttle.h",
+    "intercept_navigation_throttle.cc",
+    "intercept_navigation_throttle.h",
     "navigation_params.cc",
     "navigation_params.h",
   ]
 
   deps = [
     "//base",
     "//content/public/browser",
     "//content/public/common",
     "//net",
     "//ui/base",
@@ skipping 19 matching lines @@
       "android/java/src/org/chromium/components/navigation_interception/InterceptNavigationDelegate.java",
       "android/java/src/org/chromium/components/navigation_interception/NavigationParams.java",
     ]
     jni_package = "navigation_interception"
   }
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
-    "intercept_navigation_resource_throttle_unittest.cc",
+    "intercept_navigation_throttle_unittest.cc",
   ]
   deps = [
     ":navigation_interception",
     "//content/public/browser",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }