Fix ASAN ODR violation in ppapi/proxy in component mode

ppapi/proxy/BUILD.gn

 # 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("//build/config/nacl/config.gni")
 
 config("proxy_implementation") {
   defines = [ "PPAPI_PROXY_IMPLEMENTATION" ]
 }
 
@@ skipping 290 matching lines @@
     ]
   }
 
   if (!is_nacl_nonsfi) {
     deps += [ "//third_party/icu" ]
   }
 }
 
 source_set("common") {
   sources = [
-    "tcp_socket_resource_constants.cc",
     "tcp_socket_resource_constants.h",
-    "udp_socket_resource_constants.cc",
     "udp_socket_resource_constants.h",
   ]
-
-  configs += [ ":proxy_implementation" ]
 }
 
 group("ipc") {
   if (is_component_build) {
     public_deps = [
       "//ppapi/proxy",
     ]
   } else {
     public_deps = [
       ":ipc_sources",
@@ skipping 58 matching lines @@
   deps = [
     "//base/test:test_support",
     "//ipc",
     "//ipc:test_support",
     "//ppapi/proxy",
     "//ppapi/shared_impl",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }