[PoC] Reformat all BUILD.gn and *.gni files with new gn.

ppapi/native_client/BUILD.gn

Index: ppapi/native_client/BUILD.gn
diff --git a/ppapi/native_client/BUILD.gn b/ppapi/native_client/BUILD.gn
index 45ee5acb2562ad512706520e812217911650c660..60603355983ff4d67245c70e3626f01123f86ef7 100644
--- a/ppapi/native_client/BUILD.gn
+++ b/ppapi/native_client/BUILD.gn
@@ -21,17 +21,17 @@ if (is_nacl) {
       "//base",
       "//components/tracing",
       "//gpu/command_buffer/client",
-      "//gpu/command_buffer/common",
       "//gpu/command_buffer/client:gles2_implementation",
+      "//gpu/command_buffer/common",
       "//gpu/ipc",
       "//ipc",
       "//media:shared_memory_support",
-      "//native_client/src/untrusted/irt:irt_core_lib",
-      "//native_client/src/shared/srpc",
+      "//native_client/src/shared/gio",
       "//native_client/src/shared/platform",
+      "//native_client/src/shared/srpc",
       "//native_client/src/tools/tls_edit($host_toolchain)",
+      "//native_client/src/untrusted/irt:irt_core_lib",
       "//native_client/src/untrusted/nacl:imc_syscalls",
-      "//native_client/src/shared/gio",
       "//ppapi/native_client/src/untrusted/pnacl_irt_shim:irt",
       "//ppapi/proxy",
       "//ppapi/proxy:ipc",