Make chrome/utility not depend on content/common. Enforce with DEPS.

content/public/utility/utility_thread.h

Index: content/public/utility/utility_thread.h
===================================================================
--- content/public/utility/utility_thread.h	(revision 107064)
+++ content/public/utility/utility_thread.h	(working copy)
@@ -10,6 +10,10 @@
 #include "content/common/content_export.h"
 #include "ipc/ipc_message.h"
 
+#if defined(OS_WIN)
+#include <windows.h>
+#endif
+
 namespace content {
 
   class CONTENT_EXPORT UtilityThread : public IPC::Message::Sender {
@@ -23,6 +27,15 @@
 
   // Releases the process if we are not (or no longer) in batch mode.
   virtual void ReleaseProcessIfNeeded() = 0;
+
+#if defined(OS_WIN)
+  // Request that the given font be loaded by the browser so it's cached by the
+  // OS. Please see ChildProcessHost::PreCacheFont for details.
+  virtual void PreCacheFont(const LOGFONT& log_font) = 0;
+
+  // Release cached font.
+  virtual void ReleaseCachedFonts() = 0;
+#endif
 };
 
 }  // namespace content