[DevTools] Move IO and Tracing to new generator.

content/browser/devtools/BUILD.gn

 # Copyright 2014 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("//tools/grit/grit_rule.gni")
 import("//third_party/inspector_protocol/inspector_protocol.gni")
 
 group("resources") {
   public_deps = [
     ":devtools_resources",
@@ skipping 37 matching lines @@
   config_file = "protocol_config.json"
   config_values = [ "protocol.path=$_blink_protocol_path" ]
 
   inputs = [
     "$root_gen_dir/blink/core/inspector/protocol.json",
     config_file,
   ]
 
   # These are relative to $target_gen_dir.
   outputs = [
+    "protocol/forward.h",
     "protocol/io.cc",
     "protocol/io.h",
-    "protocol/forward.h",
     "protocol/protocol.cc",
     "protocol/protocol.h",
     "protocol/tracing.cc",
     "protocol/tracing.h",
   ]
 }
 
 action("gen_devtools_protocol_handler") {
   visibility = [ "//content/browser" ]
   deps = [
     "//third_party/WebKit/Source/core/inspector:protocol_version",
   ]
   script = "//content/browser/devtools/protocol/" +
            "devtools_protocol_handler_generator.py"
 
   blink_protocol = "$root_gen_dir/blink/core/inspector/protocol.json"
   inputs = [
     blink_protocol,
   ]
 
   outputs = [
     "$target_gen_dir/protocol/devtools_protocol_dispatcher.cc",
     "$target_gen_dir/protocol/devtools_protocol_dispatcher.h",
   ]
 
   args =
       rebase_path(inputs, root_build_dir) + rebase_path(outputs, root_build_dir)
 }