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

content/utility/utility_thread_impl.cc

Index: content/utility/utility_thread_impl.cc
===================================================================
--- content/utility/utility_thread_impl.cc	(revision 107064)
+++ content/utility/utility_thread_impl.cc	(working copy)
@@ -9,6 +9,7 @@
 #include "base/file_path.h"
 #include "base/memory/scoped_vector.h"
 #include "content/common/child_process.h"
+#include "content/common/child_process_messages.h"
 #include "content/common/indexed_db_key.h"
 #include "content/common/utility_messages.h"
 #include "content/public/utility/content_utility_client.h"
@@ -51,6 +52,19 @@
     ChildProcess::current()->ReleaseProcess();
 }
 
+#if defined(OS_WIN)
+
+void UtilityThreadImpl::PreCacheFont(const LOGFONT& log_font) {
+  Send(new ChildProcessHostMsg_PreCacheFont(log_font));
+}
+
+void UtilityThreadImpl::ReleaseCachedFonts() {
+  Send(new ChildProcessHostMsg_ReleaseCachedFonts());
+}
+
+#endif  // OS_WIN
+
+
 bool UtilityThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
   if (content::GetContentClient()->utility()->OnMessageReceived(msg))
     return true;