[Android WebView] Add functionality to enable features and enable the spellcheck feature.

android_webview/lib/main/aw_main_delegate.cc

 // Copyright (c) 2012 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.
 
 #include "android_webview/lib/main/aw_main_delegate.h"
 
 #include <memory>
 
 #include "android_webview/browser/aw_content_browser_client.h"
 #include "android_webview/browser/browser_view_renderer.h"
+#include "android_webview/browser/command_line_helper.h"
 #include "android_webview/browser/deferred_gpu_command_service.h"
 #include "android_webview/browser/scoped_allow_wait_for_legacy_web_view_api.h"
 #include "android_webview/common/aw_descriptors.h"
 #include "android_webview/common/aw_switches.h"
 #include "android_webview/crash_reporter/aw_microdump_crash_reporter.h"
 #include "android_webview/gpu/aw_content_gpu_client.h"
 #include "android_webview/lib/aw_browser_dependency_factory_impl.h"
 #include "android_webview/native/aw_locale_manager_impl.h"
 #include "android_webview/native/aw_media_url_interceptor.h"
 #include "android_webview/native/aw_message_port_service_impl.h"
 #include "android_webview/native/aw_quota_manager_bridge_impl.h"
 #include "android_webview/native/aw_web_contents_view_delegate.h"
 #include "android_webview/native/aw_web_preferences_populater_impl.h"
 #include "android_webview/renderer/aw_content_renderer_client.h"
 #include "base/android/apk_assets.h"
 #include "base/command_line.h"
 #include "base/cpu.h"
 #include "base/i18n/icu_util.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
 #include "cc/base/switches.h"
 #include "components/crash/content/app/breakpad_linux.h"
+#include "components/spellcheck/common/spellcheck_features.h"
 #include "content/public/browser/android/browser_media_player_manager_register.h"
 #include "content/public/browser/browser_main_runner.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/content_descriptors.h"
 #include "content/public/common/content_switches.h"
 #include "gin/public/isolate_holder.h"
 #include "gin/v8_initializer.h"
 #include "gpu/command_buffer/client/gl_in_process_context.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "media/base/media_switches.h"
@@ skipping 86 matching lines @@
         gin::V8Initializer::GetSnapshotFilePath(false).AsUTF8Unsafe());
   }
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
 
   if (cl->HasSwitch(switches::kWebViewSandboxedRenderer)) {
     cl->AppendSwitch(switches::kInProcessGPU);
     cl->AppendSwitchASCII(switches::kRendererProcessLimit, "1");
     cl->AppendSwitch(switches::kDisableRendererBackgrounding);
   }
 
+  CommandLineHelper::AddEnabledFeature(
+      *cl, spellcheck::kAndroidSpellCheckerNonLowEnd.name);
+
   return false;
 }
 
 void AwMainDelegate::PreSandboxStartup() {
 #if defined(ARCH_CPU_ARM_FAMILY)
   // Create an instance of the CPU class to parse /proc/cpuinfo and cache
   // cpu_brand info.
   base::CPU cpu_info;
 #endif
 
@@ skipping 102 matching lines @@
 
 AwMessagePortService* AwMainDelegate::CreateAwMessagePortService() {
   return new AwMessagePortServiceImpl();
 }
 
 AwLocaleManager* AwMainDelegate::CreateAwLocaleManager() {
   return new AwLocaleManagerImpl();
 }
 
 }  // namespace android_webview