Add DirectWrite flag and plumb it through to Blink

content/child/runtime_features.cc

 // Copyright 2013 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/child/runtime_features.h"
 
 #include "base/command_line.h"
 #include "content/public/common/content_switches.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 
@@ skipping 112 matching lines @@
 
   if (command_line.HasSwitch(switches::kDisableDeviceOrientation))
     WebRuntimeFeatures::enableDeviceOrientation(false);
 
   if (command_line.HasSwitch(switches::kDisableSpeechInput))
     WebRuntimeFeatures::enableSpeechInput(false);
 
   if (command_line.HasSwitch(switches::kDisableFileSystem))
     WebRuntimeFeatures::enableFileSystem(false);
 
+#if defined(OS_WIN)
+  if (command_line.HasSwitch(switches::kEnableDirectWrite))
+    WebRuntimeFeatures::enableDirectWrite(true);
+#endif
+
   if (command_line.HasSwitch(switches::kEnableExperimentalCanvasFeatures))
     WebRuntimeFeatures::enableExperimentalCanvasFeatures(true);
 
   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
     WebRuntimeFeatures::enableSpeechSynthesis(true);
 
   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 
   if (command_line.HasSwitch(switches::kEnableHTMLImports))
     WebRuntimeFeatures::enableHTMLImports(true);
 
   if (command_line.HasSwitch(switches::kEnableOverlayFullscreenVideo))
     WebRuntimeFeatures::enableOverlayFullscreenVideo(true);
 
   if (command_line.HasSwitch(switches::kEnableOverlayScrollbars))
     WebRuntimeFeatures::enableOverlayScrollbars(true);
 
   if (command_line.HasSwitch(switches::kEnableInputModeAttribute))
     WebRuntimeFeatures::enableInputModeAttribute(true);
 
   if (command_line.HasSwitch(switches::kEnableFastTextAutosizing))
     WebRuntimeFeatures::enableFastTextAutosizing(true);
 
   if (command_line.HasSwitch(switches::kEnableRepaintAfterLayout))
     WebRuntimeFeatures::enableRepaintAfterLayout(true);
 }
 
 }  // namespace content