Update GN and mass reformat gn files

Match chromium version and reformat all GN files.

Change-Id: I7165e9271d3f4c3c505ea87a6ced60350e9929ed
diff --git a/src/traced/probes/BUILD.gn b/src/traced/probes/BUILD.gn
index 7d37ec8..4bdfba5 100644
--- a/src/traced/probes/BUILD.gn
+++ b/src/traced/probes/BUILD.gn
@@ -22,18 +22,14 @@
     "../../../gn:default_deps",
     "../../../include/perfetto/ext/traced",
   ]
-  sources = [
-    "main.cc",
-  ]
+  sources = [ "main.cc" ]
   assert_no_deps = [ "//gn:protobuf_lite" ]
 }
 
 # Contains all the implementation but not the main() entry point. This target
 # is shared both by the executable and tests.
 source_set("probes") {
-  public_deps = [
-    "../../../include/perfetto/ext/traced",
-  ]
+  public_deps = [ "../../../include/perfetto/ext/traced" ]
   deps = [
     ":probes_src",
     "../../../gn:default_deps",
@@ -42,15 +38,11 @@
   if (enable_perfetto_version_gen) {
     deps += [ "//gn/standalone:gen_git_revision" ]
   }
-  sources = [
-    "probes.cc",
-  ]
+  sources = [ "probes.cc" ]
 }
 
 source_set("probes_src") {
-  public_deps = [
-    "ftrace",
-  ]
+  public_deps = [ "ftrace" ]
   deps = [
     ":data_source",
     "../../../gn:default_deps",