Upstream the iOS WebClient

ios/web/public/web_client.cc

+// 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.
+
+#include "ios/web/public/web_client.h"
+
+namespace web {
+
+static WebClient* g_client;
+
+void SetWebClient(WebClient* client) {
+  g_client = client;
+}
+
+WebClient* GetWebClient() {
+  return g_client;
+}
+
+WebClient::WebClient() {
+}
+
+WebClient::~WebClient() {
+}
+
+WebMainParts* WebClient::CreateWebMainParts() {
+  return nullptr;
+}
+
+WebViewFactory* WebClient::GetWebViewFactory() const {
+  return nullptr;
+}
+
+std::string WebClient::GetAcceptLangs(BrowserState* state) const {
+  return std::string();
+}
+
+bool WebClient::IsAppSpecificURL(const GURL& url) const {
+  return false;
+}
+
+base::string16 WebClient::GetPluginNotSupportedText() const {
+  return base::string16();
+}
+
+std::string WebClient::GetProduct() const {
+  return std::string();
+}
+
+std::string WebClient::GetUserAgent(bool desktop_user_agent) const {
+  return std::string();
+}
+
+base::string16 WebClient::GetLocalizedString(int message_id) const {
+  return base::string16();
+}
+
+base::StringPiece WebClient::GetDataResource(
+    int resource_id,
+    ui::ScaleFactor scale_factor) const {
+  return base::StringPiece();
+}
+
+base::RefCountedStaticMemory* WebClient::GetDataResourceBytes(
+    int resource_id) const {
+  return nullptr;
+}
+
+}  // namespace web