Land prep work to enable NaCl in the Linux x64 GN builds.

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.
 
 config("proxy_implementation") {
   defines = [ "PPAPI_PROXY_IMPLEMENTATION" ]
 }
 
 component("proxy") {
   output_name = "ppapi_proxy"
@@ skipping 166 matching lines @@
     "udp_socket_resource_base.h",
     "uma_private_resource.cc",
     "uma_private_resource.h",
     "url_loader_resource.cc",
     "url_loader_resource.h",
     "url_request_info_resource.cc",
     "url_request_info_resource.h",
     "url_response_info_resource.cc",
     "url_response_info_resource.h",
     "var_serialization_rules.h",
+    "video_decoder_resource.cc",
+    "video_decoder_resource.h",
     "video_destination_resource.cc",
     "video_destination_resource.h",
+    "video_encoder_resource.cc",
+    "video_encoder_resource.h",
     "video_frame_resource.cc",
     "video_frame_resource.h",
     "video_source_resource.cc",
     "video_source_resource.h",
     "websocket_resource.cc",
     "websocket_resource.h",
   ]
 
   if (is_nacl) {
     sources += [
@@ skipping 52 matching lines @@
       "ppp_content_decryptor_private_proxy.cc",
       "ppp_content_decryptor_private_proxy.h",
       "ppp_instance_private_proxy.cc",
       "ppp_instance_private_proxy.h",
       "ppp_video_decoder_proxy.cc",
       "ppp_video_decoder_proxy.h",
       "talk_resource.cc",
       "talk_resource.h",
       "video_capture_resource.cc",
       "video_capture_resource.h",
-      "video_decoder_resource.cc",
-      "video_decoder_resource.h",
-      "video_encoder_resource.cc",
-      "video_encoder_resource.h",
     ]
   }
 
   configs += [ ":proxy_implementation" ]
 
   deps = [
     "//base",
-    "//base/third_party/dynamic_annotations",
-    "//gin",
     "//gpu/command_buffer/client:gles2_implementation",
     "//gpu/ipc",
     "//ipc",
     "//media:shared_memory_support",
     "//ppapi/c",
     "//ppapi/proxy:ipc",
     "//ppapi/shared_impl",
-    "//skia",
     "//third_party/icu",
-    "//ui/events:events_base",
-    "//ui/surface",
   ]
 
-  # TODO(GYP) support chrome_multiple_dll
-  #if (chrome_multiple_dll) {
-  #  deps += [ "//third_party/WebKit/public:blink_minimal" ]
-  #} else {
-  deps += [ "//third_party/WebKit/public:blink" ]
-
-  #}
+  if (is_nacl) {
+    deps += [
+      "//ui/events:latency_info",
+      "//mojo/nacl:mojo",
+    ]
+  } else {
+    deps += [
+      "//base/third_party/dynamic_annotations",
+      "//gin",
+      "//skia",
+      "//ui/events:events_base",
+      "//ui/surface",
+    ]
+  }
 }
 
 source_set("ipc") {
   sources = [
     "nacl_message_scanner.cc",
     "nacl_message_scanner.h",
     "ppapi_messages.cc",
     "ppapi_messages.h",
     "ppapi_param_traits.cc",
     "ppapi_param_traits.h",
@@ skipping 16 matching lines @@
   }
 
   configs += [ ":proxy_implementation" ]
 
   deps = [
     "//base",
     "//gpu/ipc",
     "//ipc",
     "//ppapi/c",
     "//ppapi/shared_impl",
-    "//skia",
-    "//ui/events/ipc",
   ]
+  if (!is_nacl) {
+    deps += [
+      "//skia",
+      "//ui/events/ipc",
+    ]
+  }
 }
 
 source_set("test_support") {
   testonly = true
 
   sources = [
     "ppapi_proxy_test.cc",
     "ppapi_proxy_test.h",
     "resource_message_test_sink.cc",
     "resource_message_test_sink.h",
   ]
 
   deps = [
     "//base/test:test_support",
     "//ipc",
     "//ipc:test_support",
     "//ppapi/proxy",
     "//ppapi/shared_impl",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }