Cleaning up remoting GN build files. Condense the sources.

remoting/client/plugin/BUILD.gn

Index: remoting/client/plugin/BUILD.gn
diff --git a/remoting/client/plugin/BUILD.gn b/remoting/client/plugin/BUILD.gn
index 109a859b340047fc54b0351fa2810e1c8560dbf8..79d28a093bf34218d8f258ca07d268af2e3ed728 100644
--- a/remoting/client/plugin/BUILD.gn
+++ b/remoting/client/plugin/BUILD.gn
@@ -6,17 +6,46 @@ assert(is_nacl,
        "These targets must only be built using the untrusted NaCl toolchains.")
 
 import("//build/config/features.gni")
-import("//remoting/remoting_srcs.gni")
 
 config("enable_linker_optimization") {
   ldflags = [ "-Wl,-O1" ]
 }
 
 executable("remoting_client_plugin_newlib") {
-  sources =
-      rebase_path(remoting_srcs_gypi_values.remoting_client_plugin_sources,
-                  ".",
-                  "//remoting")
+  sources = [
+    "chromoting_instance.cc",
+    "chromoting_instance.h",
+    "delegating_signal_strategy.cc",
+    "delegating_signal_strategy.h",
+    "pepper_address_resolver.cc",
+    "pepper_address_resolver.h",
+    "pepper_audio_player.cc",
+    "pepper_audio_player.h",
+    "pepper_cursor_setter.cc",
+    "pepper_cursor_setter.h",
+    "pepper_input_handler.cc",
+    "pepper_input_handler.h",
+    "pepper_main_thread_task_runner.cc",
+    "pepper_main_thread_task_runner.h",
+    "pepper_module.cc",
+    "pepper_mouse_locker.cc",
+    "pepper_mouse_locker.h",
+    "pepper_network_manager.cc",
+    "pepper_network_manager.h",
+    "pepper_packet_socket_factory.cc",
+    "pepper_packet_socket_factory.h",
+    "pepper_port_allocator_factory.cc",
+    "pepper_port_allocator_factory.h",
+    "pepper_url_request.cc",
+    "pepper_url_request.h",
+    "pepper_util.cc",
+    "pepper_util.h",
+    "pepper_video_renderer.h",
+    "pepper_video_renderer_2d.cc",
+    "pepper_video_renderer_2d.h",
+    "pepper_video_renderer_3d.cc",
+    "pepper_video_renderer_3d.h",
+  ]
 
   configs += [ "//build/config/compiler:wexit_time_destructors" ]