Properly define v8_enable_inspector and its override in GN.

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/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/dcheck_always_on.gni")
 import("//build/config/mips.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
 import("gni/v8.gni")
 import("gni/isolate.gni")
-import("//build_overrides/v8.gni")
-
 import("snapshot_toolchain.gni")
 
 declare_args() {
   # Print to stdout on Android.
   v8_android_log_stdout = false
 
   # Sets -DVERIFY_HEAP.
   v8_enable_verify_heap = false
 
   # Enable compiler warnings when using V8_DEPRECATED apis.
@@ skipping 119 matching lines @@
   include_dirs = [ "include" ]
 }
 
 # This config should only be applied to code using V8 and not any V8 code
 # itself.
 config("external_config") {
   if (is_component_build) {
     defines = [ "USING_V8_SHARED" ]
   }
   include_dirs = [ "include" ]
-  if (v8_enable_inspector_override) {
+  if (v8_enable_inspector) {
     include_dirs += [ "$target_gen_dir/include" ]
   }
 }
 
 # This config should only be applied to code that needs to be explicitly
 # aware of whether we are using startup data or not.
 config("external_startup_data") {
   if (v8_use_external_startup_data) {
     defines = [ "V8_USE_EXTERNAL_STARTUP_DATA" ]
   }
@@ skipping 566 matching lines @@
     rebase_path("$root_out_dir/v8_build_config.json", root_build_dir),
     "dcheck_always_on=$dcheck_always_on",
     "is_asan=$is_asan",
     "is_cfi=$is_cfi",
     "is_component_build=$is_component_build",
     "is_debug=$is_debug",
     "is_msan=$is_msan",
     "is_tsan=$is_tsan",
     "target_cpu=\"$target_cpu\"",
     "v8_enable_i18n_support=$v8_enable_i18n_support",
-    "v8_enable_inspector=$v8_enable_inspector_override",
+    "v8_enable_inspector=$v8_enable_inspector",
     "v8_target_cpu=\"$v8_target_cpu\"",
     "v8_use_snapshot=$v8_use_snapshot",
   ]
 }
 
 ###############################################################################
 # Source Sets (aka static libraries)
 #
 
 source_set("v8_maybe_snapshot") {
@@ skipping 1436 matching lines @@
       "src/i18n.cc",
       "src/i18n.h",
     ]
   }
 
   if (v8_postmortem_support) {
     sources += [ "$target_gen_dir/debug-support.cc" ]
     deps += [ ":postmortem-metadata" ]
   }
 
-  if (v8_enable_inspector_override) {
+  if (v8_enable_inspector) {
     deps += [ "src/inspector:inspector" ]
   }
 }
 
 v8_component("v8_libbase") {
   sources = [
     "src/base/adapters.h",
     "src/base/atomic-utils.h",
     "src/base/atomicops.h",
     "src/base/atomicops_internals_atomicword_compat.h",
@@ skipping 354 matching lines @@
     sources += [ "src/d8-posix.cc" ]
   } else if (is_win) {
     sources += [ "src/d8-windows.cc" ]
   }
 
   if (v8_enable_i18n_support) {
     deps += [ "//third_party/icu" ]
   }
 
   defines = []
-  if (v8_enable_inspector_override) {
+  if (v8_enable_inspector) {
     defines += [ "V8_INSPECTOR_ENABLED" ]
   }
 }
 
 v8_isolate_run("d8") {
   deps = [
     ":d8",
   ]
 
   isolate = "//src/d8.isolate"
@@ skipping 413 matching lines @@
   ]
 
   configs = [
     ":external_config",
     ":internal_config_base",
   ]
 }
 
 v8_fuzzer("wasm_data_section_fuzzer") {
 }