[inspector] Build inspector under v8_enable_inspector build flag.

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")
 
@@ skipping 122 matching lines @@
 # This config should only be applied to code using V8 and not any V8 code
 # itself.
 config("external_config") {
   if (is_component_build) {
     defines = [
       "V8_SHARED",
       "USING_V8_SHARED",
     ]
   }
   include_dirs = [ "include" ]
+  if (v8_enable_inspector_override) {
+    include_dirs += [ "$target_gen_dir/include" ]
+  }
   libs = []
   if (is_android && current_toolchain != host_toolchain) {
     libs += [ "log" ]
   }
 }
 
 # 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) {
@@ skipping 1856 matching lines @@
     sources -= [
       "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) {
+    deps += [ "src/inspector:inspector" ]
+  }
 }
 
 v8_source_set("v8_libbase") {
   visibility = [ ":*" ]  # Only targets in this file can depend on this.
 
   sources = [
     "src/base/accounting-allocator.cc",
     "src/base/accounting-allocator.h",
     "src/base/adapters.h",
     "src/base/atomic-utils.h",
@@ skipping 566 matching lines @@
 
   deps = [
     ":fuzzer_support",
   ]
 
   configs = [ ":internal_config" ]
 }
 
 v8_fuzzer("wasm_code_fuzzer") {
 }