Split up ios/web:test_support.

ios/web/public/test/response_providers/data_response_provider.mm

Index: ios/web/public/test/response_providers/data_response_provider.mm
diff --git a/ios/web/public/test/response_providers/data_response_provider.mm b/ios/web/public/test/response_providers/data_response_provider.mm
deleted file mode 100644
index b73dcc233ae08968669679ec9b2973f36f80ec82..0000000000000000000000000000000000000000
--- a/ios/web/public/test/response_providers/data_response_provider.mm
+++ /dev/null
@@ -1,36 +0,0 @@
-// 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 "ios/web/public/test/response_providers/data_response_provider.h"
-
-#include "base/strings/sys_string_conversions.h"
-#import "ios/third_party/gcdwebserver/src/GCDWebServer/Responses/GCDWebServerDataResponse.h"
-
-namespace web {
-
-GCDWebServerResponse* DataResponseProvider::GetGCDWebServerResponse(
-    const Request& request) {
-  std::string response_body;
-  scoped_refptr<net::HttpResponseHeaders> response_headers;
-  GetResponseHeadersAndBody(request, &response_headers, &response_body);
-  GCDWebServerDataResponse* data_response = [GCDWebServerDataResponse
-      responseWithHTML:base::SysUTF8ToNSString(response_body)];
-  data_response.statusCode = response_headers->response_code();
-  size_t iter = 0;
-  std::string name;
-  std::string value;
-  while (response_headers->EnumerateHeaderLines(&iter, &name, &value)) {
-    // TODO(crbug.com/435350): Extract out other names that can't be set by
-    // using the |setValue:forAdditionalHeader:| API such as "ETag" etc.
-    if (name == "Content-type") {
-      data_response.contentType = base::SysUTF8ToNSString(value);
-      continue;
-    }
-    [data_response setValue:base::SysUTF8ToNSString(value)
-        forAdditionalHeader:base::SysUTF8ToNSString(name)];
-  }
-  return data_response;
-}
-
-}  // namespace web