DevTools: merge browser_protocol.json files from content and core/inspector.

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")
 
 # In GYP: devtools_resources target.
 group("resources") {
   public_deps = [
     ":devtools_resources",
@@ skipping 25 matching lines @@
 
 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"
-  browser_protocol = "browser_protocol.json"
   inputs = [
     blink_protocol,
-    browser_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)
 }