Enable runtime features with status=test before WebKit

content/shell/renderer/layout_test/layout_test_content_renderer_client.cc

 // Copyright (c) 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.
 
 #include "content/shell/renderer/layout_test/layout_test_content_renderer_client.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "components/test_runner/mock_credential_manager_client.h"
 #include "components/test_runner/web_frame_test_proxy.h"
 #include "components/test_runner/web_test_interfaces.h"
 #include "components/test_runner/web_test_runner.h"
 #include "components/test_runner/web_view_test_proxy.h"
 #include "components/web_cache/renderer/web_cache_impl.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/test/layouttest_support.h"
+#include "content/shell/common/layout_test/layout_test_switches.h"
 #include "content/shell/common/shell_switches.h"
 #include "content/shell/renderer/layout_test/blink_test_helpers.h"
 #include "content/shell/renderer/layout_test/blink_test_runner.h"
 #include "content/shell/renderer/layout_test/layout_test_render_frame_observer.h"
 #include "content/shell/renderer/layout_test/layout_test_render_thread_observer.h"
 #include "content/shell/renderer/layout_test/test_media_stream_renderer_factory.h"
 #include "content/shell/renderer/shell_render_view_observer.h"
 #include "content/test/mock_webclipboard_impl.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamCenter.h"
 #include "third_party/WebKit/public/platform/modules/app_banner/WebAppBannerClient.h"
 #include "third_party/WebKit/public/web/WebFrameWidget.h"
+#include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebPluginParams.h"
+#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "third_party/WebKit/public/web/WebTestingSupport.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/gfx/icc_profile.h"
 #include "v8/include/v8.h"
 
 using blink::WebAudioDevice;
 using blink::WebClipboard;
 using blink::WebFrame;
 using blink::WebLocalFrame;
 using blink::WebMIDIAccessor;
@@ skipping 196 matching lines @@
 #else
   return base::WrapUnique(new gfx::ICCProfile());
 #endif
 }
 
 void LayoutTestContentRendererClient::DidInitializeWorkerContextOnWorkerThread(
     v8::Local<v8::Context> context) {
   blink::WebTestingSupport::injectInternalsObject(context);
 }
 
+void LayoutTestContentRendererClient::
+    SetRuntimeFeaturesDefaultsBeforeBlinkInitialization() {
+  EnableRendererLayoutTestMode();

[jochen (gone - plz use gerrit), 2016/09/16 15:32:45]

This will crash windows

+
+  // We always expose GC to layout tests.
+  std::string flags("--expose-gc");
+  v8::V8::SetFlagsFromString(flags.c_str(), static_cast<int>(flags.size()));
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kStableReleaseMode)) {
+    blink::WebRuntimeFeatures::enableTestOnlyFeatures(true);
+  }
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableFontAntialiasing)) {
+    blink::setFontAntialiasingEnabledForTest(true);
+  }
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kAlwaysUseComplexText)) {
+    blink::setAlwaysUseComplexTextForTest(true);
+  }
+}
+
 }  // namespace content