Support sideloaded fonts via command line option for blink layout_tests

content/common/sandbox_win.h

Index: content/common/sandbox_win.h
diff --git a/content/common/sandbox_win.h b/content/common/sandbox_win.h
index 92d8d04f3dde15855a2134a92db1aff3b8d7578d..1703d7a9ec7044f03c3398c57d0553717a0c1663 100644
--- a/content/common/sandbox_win.h
+++ b/content/common/sandbox_win.h
@@ -5,6 +5,7 @@
 #ifndef CONTENT_COMMON_SANDBOX_WIN_H_
 #define CONTENT_COMMON_SANDBOX_WIN_H_
 
+#include "content/common/content_export.h"
 #include "sandbox/win/src/security_level.h"
 
 namespace base {
@@ -33,7 +34,8 @@ bool InitBrokerServices(sandbox::BrokerServices* broker_services);
 
 bool InitTargetServices(sandbox::TargetServices* target_services);
 
-bool ShouldUseDirectWrite();
+// Returns whether DirectWrite font rendering should be used.
+CONTENT_EXPORT bool ShouldUseDirectWrite();
 
 }  // namespace content