Move fetching logic out of ApplicationManager, eliminate url mappings.

mojo/fetcher/BUILD.gn

Index: mojo/fetcher/BUILD.gn
diff --git a/mojo/fetcher/BUILD.gn b/mojo/fetcher/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..f362129f86a9ecc37834ae82feecae650dc11604
--- /dev/null
+++ b/mojo/fetcher/BUILD.gn
@@ -0,0 +1,44 @@
+# 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("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
+
+source_set("fetcher") {
+  sources = [
+    "about_fetcher.cc",
+    "about_fetcher.h",
+    "base_application_fetcher.cc",
+    "base_application_fetcher.h",
+    "local_fetcher.cc",
+    "local_fetcher.h",
+    "network_fetcher.cc",
+    "network_fetcher.h",
+    "switches.cc",
+    "switches.h",
+    "update_fetcher.cc",
+    "update_fetcher.h",
+    "url_resolver.cc",
+    "url_resolver.h",
+  ]
+
+  public_deps = [
+    "//base",
+    "//mojo/application/public/interfaces",
+    "//mojo/common",
+    "//third_party/mojo/src/mojo/public/cpp/bindings",
+    "//mojo/services/network/public/interfaces",
+    "//mojo/services/updater",
+    "//url",
+  ]
+  deps = [
+    "//base/third_party/dynamic_annotations",
+    "//crypto:crypto",
+    "//mojo/application/public/cpp:sources",
+    "//url",
+    "//third_party/mojo/src/mojo/edk/system",
+    "//mojo/environment:chromium",
+    "//mojo/shell",
+    "//mojo/util:filename_util",
+  ]
+}