Reland of [DevTools] Migrate target domain to new generator.

content/browser/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 172 matching lines @@
     "$target_gen_dir/devtools/protocol/schema.cc",
     "$target_gen_dir/devtools/protocol/schema.h",
     "$target_gen_dir/devtools/protocol/security.cc",
     "$target_gen_dir/devtools/protocol/security.h",
     "$target_gen_dir/devtools/protocol/service_worker.cc",
     "$target_gen_dir/devtools/protocol/service_worker.h",
     "$target_gen_dir/devtools/protocol/storage.cc",
     "$target_gen_dir/devtools/protocol/storage.h",
     "$target_gen_dir/devtools/protocol/system_info.cc",
     "$target_gen_dir/devtools/protocol/system_info.h",
+    "$target_gen_dir/devtools/protocol/target.cc",
+    "$target_gen_dir/devtools/protocol/target.h",
     "$target_gen_dir/devtools/protocol/tethering.cc",
     "$target_gen_dir/devtools/protocol/tethering.h",
     "$target_gen_dir/devtools/protocol/tracing.cc",
     "$target_gen_dir/devtools/protocol/tracing.h",
     "../common/service_manager/child_connection.cc",
     "../common/service_manager/child_connection.h",
     "../zygote/zygote_linux.cc",
     "../zygote/zygote_linux.h",
     "../zygote/zygote_main_linux.cc",
     "accessibility/accessibility_tree_formatter.cc",
@@ skipping 1777 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }