Switch to direct write font proxy and remove the font cache.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 9197d0cb264e99f6ea28f71a90f9fada6df650d8..dab6136ac2fc88385584950aac15284ec383e5d8 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -187,6 +187,7 @@
 #if defined(OS_WIN)
 #include "base/win/scoped_com_initializer.h"
 #include "base/win/windows_version.h"
+#include "content/browser/renderer_host/dwrite_font_proxy_message_filter_win.h"
 #include "content/common/font_cache_dispatcher_win.h"
 #include "content/common/sandbox_win.h"
 #include "sandbox/win/src/sandbox_policy.h"
@@ -936,6 +937,8 @@ void RenderProcessHostImpl::CreateMessageFilters() {
 #if defined(OS_MACOSX)
   AddFilter(new TextInputClientMessageFilter(GetID()));
 #elif defined(OS_WIN)
+  AddFilter(new DWriteFontProxyMessageFilter());
+
   // The FontCacheDispatcher is required only when we're using GDI rendering.
   // TODO(scottmg): pdf/ppapi still require the renderer to be able to precache
   // GDI fonts (http://crbug.com/383227), even when using DirectWrite. This