Add DirectWrite flag and plumb it through to Blink

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 924 matching lines @@
     switches::kEnableAccessibilityLogging,
     switches::kEnableBeginFrameScheduling,
     switches::kEnableBrowserPluginForAllViewTypes,
     switches::kEnableCompositedScrollingForFrames,
     switches::kEnableCompositingForFixedPosition,
     switches::kEnableCompositingForTransition,
     switches::kEnableDCHECK,
     switches::kEnableDeadlineScheduling,
     switches::kEnableDeferredImageDecoding,
     switches::kEnableDelegatedRenderer,
+    switches::kEnableDirectWrite,
     switches::kEnableEac3Playback,
     switches::kEnableEncryptedMedia,
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
     switches::kEnableExperimentalWebSocket,
     switches::kEnableFastTextAutosizing,
     switches::kEnableGpuBenchmarking,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGPUServiceLogging,
@@ skipping 889 matching lines @@
     // Skip widgets in other processes.
     if (widget->GetProcess()->GetID() != GetID())
       continue;
 
     RenderViewHost* rvh = RenderViewHost::From(widget);
     rvh->UpdateWebkitPreferences(rvh->GetWebkitPreferences());
   }
 }
 
 }  // namespace content