Revert of Extract some stuff into PackageManager

mojo/package_manager/package_manager_impl.cc

Index: mojo/package_manager/package_manager_impl.cc
diff --git a/mojo/package_manager/package_manager_impl.cc b/mojo/package_manager/package_manager_impl.cc
deleted file mode 100644
index f1a1fc6bfb7be73f21c404c02923cc44b3d572c4..0000000000000000000000000000000000000000
--- a/mojo/package_manager/package_manager_impl.cc
+++ /dev/null
@@ -1,172 +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.
-
-#include "mojo/package_manager/package_manager_impl.h"
-
-#include "mojo/fetcher/about_fetcher.h"
-#include "mojo/fetcher/local_fetcher.h"
-#include "mojo/fetcher/network_fetcher.h"
-#include "mojo/fetcher/switches.h"
-#include "mojo/fetcher/update_fetcher.h"
-#include "mojo/shell/application_manager.h"
-#include "mojo/shell/query_util.h"
-#include "mojo/shell/switches.h"
-#include "mojo/util/filename_util.h"
-#include "url/gurl.h"
-
-namespace mojo {
-namespace package_manager {
-
-PackageManagerImpl::PackageManagerImpl(
-    const base::FilePath& shell_file_root)
-    : application_manager_(nullptr),
-      disable_cache_(base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kDisableCache)) {
-  if (!shell_file_root.empty()) {
-    GURL mojo_root_file_url =
-        util::FilePathToFileURL(shell_file_root).Resolve(std::string());
-    url_resolver_.reset(new fetcher::URLResolver(mojo_root_file_url));
-  }
-}
-
-PackageManagerImpl::~PackageManagerImpl() {
-}
-
-void PackageManagerImpl::RegisterContentHandler(
-    const std::string& mime_type,
-    const GURL& content_handler_url) {
-  DCHECK(content_handler_url.is_valid())
-      << "Content handler URL is invalid for mime type " << mime_type;
-  mime_type_to_url_[mime_type] = content_handler_url;
-}
-
-void PackageManagerImpl::RegisterApplicationPackageAlias(
-    const GURL& alias,
-    const GURL& content_handler_package,
-    const std::string& qualifier) {
-  application_package_alias_[alias] =
-      std::make_pair(content_handler_package, qualifier);
-}
-
-void PackageManagerImpl::SetApplicationManager(
-    shell::ApplicationManager* manager) {
-  application_manager_ = manager;
-}
-
-GURL PackageManagerImpl::ResolveURL(const GURL& url) {
-  return url_resolver_.get() ? url_resolver_->ResolveMojoURL(url) : url;
-}
-
-void PackageManagerImpl::FetchRequest(
-    URLRequestPtr request,
-    const shell::Fetcher::FetchCallback& loader_callback) {
-  GURL url(request->url);
-  if (url.SchemeIs(fetcher::AboutFetcher::kAboutScheme)) {
-    fetcher::AboutFetcher::Start(url, loader_callback);
-    return;
-  }
-
-  GURL resolved_url = ResolveURL(url);
-
-  if (resolved_url.SchemeIsFile()) {
-    // LocalFetcher uses the network service to infer MIME types from URLs.
-    // Skip this for mojo URLs to avoid recursively loading the network service.
-    if (!network_service_ && !url.SchemeIs("mojo")) {
-      application_manager_->ConnectToService(GURL("mojo:network_service"),
-                                            &network_service_);
-    }
-    // Ownership of this object is transferred to |loader_callback|.
-    // TODO(beng): this is eff'n weird.
-    new fetcher::LocalFetcher(
-        network_service_.get(), resolved_url,
-        shell::GetBaseURLAndQuery(resolved_url, nullptr),
-        loader_callback);
-    return;
-  }
-
-#if 0
-  // TODO(beng): figure out how this should be integrated now that mapped_url
-  //             is toast.
-  // TODO(scottmg): to quote someone I know, if you liked this you shouldda put
-  //                a test on it.
-  if (url.SchemeIs("mojo") &&
-      base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseUpdater)) {
-    application_manager_->ConnectToService(GURL("mojo:updater"), &updater_);
-    // Ownership of this object is transferred to |loader_callback|.
-    // TODO(beng): this is eff'n weird.
-    new fetcher::UpdateFetcher(url, updater_.get(), loader_callback);
-    return;
-  }
-#endif
-
-  if (!url_loader_factory_) {
-    application_manager_->ConnectToService(GURL("mojo:network_service"),
-                                           &url_loader_factory_);
-  }
-
-  // Ownership of this object is transferred to |loader_callback|.
-  // TODO(beng): this is eff'n weird.
-  new fetcher::NetworkFetcher(disable_cache_, request.Pass(),
-                              url_loader_factory_.get(), loader_callback);
-}
-
-bool PackageManagerImpl::HandleWithContentHandler(shell::Fetcher* fetcher,
-                                                  const GURL& unresolved_url,
-                                                  base::TaskRunner* task_runner,
-                                                  URLResponsePtr* new_response,
-                                                  GURL* content_handler_url,
-                                                  std::string* qualifier) {
-  // TODO(beng): it seems like some delegate should/would want to have a say in
-  //             configuring the qualifier also.
-  bool enable_multi_process = base::CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kEnableMultiprocess);
-
-  // The response begins with a #!mojo <content-handler-url>.
-  std::string shebang;
-  if (fetcher->PeekContentHandler(&shebang, content_handler_url)) {
-    *new_response = fetcher->AsURLResponse(
-        task_runner, static_cast<int>(shebang.size()));
-    *qualifier = enable_multi_process ? (*new_response)->site.To<std::string>()
-                                      : std::string();
-    return true;
-  }
-
-  // The response MIME type matches a registered content handler.
-  MimeTypeToURLMap::iterator iter = mime_type_to_url_.find(fetcher->MimeType());
-  if (iter != mime_type_to_url_.end()) {
-    *new_response = fetcher->AsURLResponse(task_runner, 0);
-    *content_handler_url = iter->second;
-    *qualifier = enable_multi_process ? (*new_response)->site.To<std::string>()
-                                      : std::string();
-    return true;
-  }
-
-  // The response URL matches a registered content handler.
-  auto alias_iter = application_package_alias_.find(unresolved_url);
-  if (alias_iter != application_package_alias_.end()) {
-    // We replace the qualifier with the one our package alias requested.
-    *new_response = URLResponse::New();
-    (*new_response)->url = unresolved_url.spec();
-
-    // Why can't we use this in single process mode? Because of
-    // base::AtExitManager. If you link in ApplicationRunner into your code, and
-    // then we make initialize multiple copies of the application, we end up
-    // with multiple AtExitManagers and will check on the second one being
-    // created.
-    //
-    // Why doesn't that happen when running different apps? Because
-    // your_thing.mojo!base::AtExitManager and
-    // my_thing.mojo!base::AtExitManager are different symbols.
-    *qualifier = enable_multi_process ? alias_iter->second.second
-                                      : std::string();
-    *content_handler_url = alias_iter->second.first;
-    return true;
-  }
-
-  return false;
-}
-
-}  // namespace package_manager
-}  // namespace mojo