New implementation of font precache on Windows.

chrome/service/service_utility_process_host.h

Index: chrome/service/service_utility_process_host.h
diff --git a/chrome/service/service_utility_process_host.h b/chrome/service/service_utility_process_host.h
index b3802f9258482d90c21f5fc60af9127c4df66cd0..f24bd3ae9cfb9a7bc0f2f8a33e80fafff0e38da0 100644
--- a/chrome/service/service_utility_process_host.h
+++ b/chrome/service/service_utility_process_host.h
@@ -131,6 +131,7 @@ class ServiceUtilityProcessHost : public ServiceChildProcessHost {
 
 #if defined(OS_WIN)  // This hack is Windows-specific.
   void OnPreCacheFont(const LOGFONT& font);
+  void OnReleaseCachedFonts();
 #endif  // defined(OS_WIN)
 
   // A pointer to our client interface, who will be informed of progress.
@@ -141,6 +142,8 @@ class ServiceUtilityProcessHost : public ServiceChildProcessHost {
   FilePath metafile_path_;
   // The temporary folder created for the metafile.
   scoped_ptr<ScopedTempDir> scratch_metafile_dir_;
+  // The unique id created for the process.
+  int process_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceUtilityProcessHost);
 };