[Mac/GN] When using debug_devtools=true, bundle the inspector resources using a symlink.

chrome/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("//build/buildflag_header.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/features.gni")
 import("//build/config/locales.gni")
 import("//build/config/sanitizers/sanitizers.gni")
@@ skipping 401 matching lines @@
     }
   }
 } else if (is_mac) {
   chrome_helper_name = chrome_product_full_name + " Helper"
   chrome_framework_name = chrome_product_full_name + " Framework"
 
   group("chrome") {
     deps = [
       ":chrome_app",
     ]
+
+    if (debug_devtools) {
+      deps += [ ":devtools_debug_resources" ]
+    }
   }
 
   tweak_info_plist("chrome_app_plist") {
     info_plist = "app/app-Info.plist"
     _keystone_arg = "0"
     if (enable_mac_keystone) {
       _keystone_arg = "1"
     }
     args = [
       "--breakpad=0",
@@ skipping 247 matching lines @@
 
     if (v8_use_external_startup_data) {
       sources += [
         "$root_out_dir/natives_blob.bin",
         "$root_out_dir/snapshot_blob.bin",
       ]
       public_deps += [ "//v8" ]
     }
   }
 
+  # When debug_devtools is enabled, symlink the inspector resources into the
+  # framework bundle. The resources go into the final output directory for the
+  # framework in the app bundle, rather than the framework bundle in
+  # root_out_dir, since copy_bundle_data copies the contents of the link
+  # rather than the link itself.
+  action("devtools_debug_resources") {
+    _stamp = "$target_out_dir/run_${target_name}.stamp"
+
+    outputs = [
+      _stamp,
+    ]
+
+    script = "//build/symlink.py"
+    args = [
+      "-f",
+      "--touch",
+      rebase_path(_stamp, root_out_dir),
+
+      # Convert the symlink source and destination to an absolute paths, which
+      # makes symlinking easier (now pwd manipulation).
+      rebase_path("$root_out_dir/resources/inspector"),
+      rebase_path(
+          "$root_out_dir/$chrome_product_full_name.app/Contents/Versions/$chrome_version_full/$chrome_framework_name.framework/Resources/inspector"),
+    ]
+
+    deps = [
+      # Depend on :chrome_app to ensure that the bundle is produced before
+      # creating or destroying the symlink.
+      ":chrome_app",
+      "//third_party/WebKit/public:blink_devtools_frontend_resources",
+    ]
+  }
+
   if (enable_nacl) {
     bundle_data("chrome_framework_plugins") {
       sources = []
       outputs = [
         "{{bundle_root_dir}}/Internet Plug-Ins/{{source_file_part}}",
       ]
       public_deps = []
 
       if (enable_nacl) {
         sources += [ "$root_out_dir/nacl_irt_x86_64.nexe" ]
@@ skipping 868 matching lines @@
       "//chrome/app/theme/$branding_path_component/product_logo_48.png",
       "//chrome/tools/build/linux/chrome-wrapper",
       "//third_party/xdg-utils/scripts/xdg-mime",
       "//third_party/xdg-utils/scripts/xdg-settings",
     ]
     outputs = [
       "$root_out_dir/{{source_file_part}}",
     ]
   }
 }