Simplify mojo/application/public/cpp/BUILD.gn to call the target cpp instead of application.

mojo/common/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("//testing/test.gni")
 
 group("common") {
   deps = [
     ":common_base",
     ":url_type_converters",
@@ skipping 73 matching lines @@
   source_set("tracing_impl") {
     sources = [
       "trace_controller_impl.cc",
       "trace_controller_impl.h",
       "tracing_impl.cc",
       "tracing_impl.h",
     ]
 
     deps = [
       "//base",
-      "//mojo/application/public/cpp:application",
+      "//mojo/application/public/cpp",
       "//mojo/services/tracing:bindings",
       "//third_party/mojo/src/mojo/public/cpp/bindings",
     ]
   }
 }