Split up ios/web:test_support.

ios/web/public/test/http_server/data_response_provider.h

 // 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.
 
-#ifndef IOS_WEB_PUBLIC_TEST_RESPONSE_PROVIDERS_DATA_RESPONSE_PROVIDER_H_
-#define IOS_WEB_PUBLIC_TEST_RESPONSE_PROVIDERS_DATA_RESPONSE_PROVIDER_H_
+#ifndef IOS_WEB_PUBLIC_TEST_HTTP_SERVER_DATA_RESPONSE_PROVIDER_H_
+#define IOS_WEB_PUBLIC_TEST_HTTP_SERVER_DATA_RESPONSE_PROVIDER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
-#import "ios/web/public/test/response_providers/response_provider.h"
+#import "ios/web/public/test/http_server/response_provider.h"
 #include "net/http/http_response_headers.h"
 
 namespace web {
 
 // An abstract ResponseProvider that returns a GCDWebServerDataResponse for a
 // request. This class encapsulates the logic to convert the response headers
 // and body received from |GetResponseHeadersAndBody| into a
 // GCDWebServerDataResponse.
 class DataResponseProvider : public ResponseProvider {
  public:
   // ResponseProvider implementation.
   GCDWebServerResponse* GetGCDWebServerResponse(const Request& request) final;
 
   // Returns the headers and the response body. Will only be called if the
   // provider can handle the request.
   // Note: This should actually be under protected but since this is used by
   // an adapter in order to work with the old MockHttpServer it is under
   // public.
   virtual void GetResponseHeadersAndBody(
       const Request& request,
       scoped_refptr<net::HttpResponseHeaders>* headers,
       std::string* response_body) = 0;
 };
 
 }  // namespace web
 
-#endif  // IOS_WEB_PUBLIC_TEST_RESPONSE_PROVIDERS_DATA_RESPONSE_PROVIDER_H_
+#endif  // IOS_WEB_PUBLIC_TEST_HTTP_SERVER_DATA_RESPONSE_PROVIDER_H_