Revert of Move fetching logic out of ApplicationManager, eliminate url mappings.

mojo/fetcher/url_resolver.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 "mojo/fetcher/url_resolver.h"
-
-#include "base/base_paths.h"
-#include "base/logging.h"
-#include "base/strings/utf_string_conversions.h"
-#include "mojo/shell/query_util.h"
-#include "mojo/util/filename_util.h"
-#include "url/url_util.h"
-
-namespace mojo {
-namespace fetcher {
-
-URLResolver::URLResolver(const GURL& mojo_base_url)
-    : mojo_base_url_(util::AddTrailingSlashIfNeeded(mojo_base_url)) {
-  DCHECK(mojo_base_url_.is_valid());
-  // Needed to treat first component of mojo URLs as host, not path.
-  url::AddStandardScheme("mojo", url::SCHEME_WITHOUT_AUTHORITY);
-}
-
-URLResolver::~URLResolver() {
-}
-
-GURL URLResolver::ResolveMojoURL(const GURL& mojo_url) const {
-  if (mojo_url.scheme() != "mojo") {
-    // The mapping has produced some sort of non-mojo: URL - file:, http:, etc.
-    return mojo_url;
-  }
-
-  // It's still a mojo: URL, use the default mapping scheme.
-  std::string query;
-  GURL base_url = shell::GetBaseURLAndQuery(mojo_url, &query);
-  const std::string host = base_url.host();
-  return mojo_base_url_.Resolve(host + "/" + host + ".mojo" + query);
-}
-
-}  // namespace fetcher
-}  // namespace mojo