Enable features API for content shell and webview

android_webview/browser/aw_browser_main_parts.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/browser/aw_browser_main_parts.h"
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_dev_tools_discovery_provider.h"
 #include "android_webview/browser/aw_media_client_android.h"
 #include "android_webview/browser/aw_result_codes.h"
 #include "android_webview/browser/deferred_gpu_command_service.h"
 #include "android_webview/browser/net/aw_network_change_notifier_factory.h"
 #include "android_webview/common/aw_resource.h"
 #include "android_webview/common/aw_switches.h"
 #include "base/android/apk_assets.h"
 #include "base/android/build_info.h"
 #include "base/android/locale_utils.h"
 #include "base/android/memory_pressure_listener_android.h"
 #include "base/command_line.h"
+#include "base/feature_list.h"
 #include "base/files/file_path.h"
 #include "base/i18n/rtl.h"
 #include "base/path_service.h"
 #include "components/crash/content/browser/crash_micro_dump_manager_android.h"
 #include "content/public/browser/android/synchronous_compositor.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
@@ skipping 41 matching lines @@
   // Try to directly mmap the webviewchromium.pak from the apk. Fall back to
   // load from file, using PATH_SERVICE, otherwise.
   base::FilePath pak_file_path;
   PathService::Get(ui::DIR_RESOURCE_PAKS_ANDROID, &pak_file_path);
   pak_file_path = pak_file_path.AppendASCII("webviewchromium.pak");
   ui::LoadMainAndroidPackFile("assets/webviewchromium.pak", pak_file_path);
 
   base::android::MemoryPressureListenerAndroid::RegisterSystemCallback(
       base::android::AttachCurrentThread());
   DeferredGpuCommandService::SetInstance();
-  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kSingleProcess)) {
+
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
+
+  if (!command_line->HasSwitch(switches::kSingleProcess)) {
     // Create the renderers crash manager on the UI thread.
     breakpad::CrashMicroDumpManager::GetInstance();
   }
 
+  scoped_ptr<base::FeatureList> feature_list(new base::FeatureList);
+  feature_list->InitializeFromCommandLine(
+      command_line->GetSwitchValueASCII(switches::kEnableFeatures),
+      command_line->GetSwitchValueASCII(switches::kDisableFeatures));
+  base::FeatureList::SetInstance(std::move(feature_list));
+
   return content::RESULT_CODE_NORMAL_EXIT;
 }
 
 void AwBrowserMainParts::PreMainMessageLoopRun() {
   browser_context_->PreMainMessageLoopRun();
 
   AwDevToolsDiscoveryProvider::Install();
 
   media::SetMediaClientAndroid(
       new AwMediaClientAndroid(AwResource::GetConfigKeySystemUuidMapping()));
 
   content::RenderFrameHost::AllowInjectingJavaScriptForAndroidWebView();
 }
 
 bool AwBrowserMainParts::MainMessageLoopRun(int* result_code) {
   // Android WebView does not use default MessageLoop. It has its own
   // Android specific MessageLoop.
   return true;
 }
 
 }  // namespace android_webview