New implementation of font precache on Windows.

chrome/utility/chrome_content_utility_client.cc

Index: chrome/utility/chrome_content_utility_client.cc
diff --git a/chrome/utility/chrome_content_utility_client.cc b/chrome/utility/chrome_content_utility_client.cc
index 2f1b8958fa211ed54b50d0721c8c7d1730330658..fbab4e611917ef84a0b64de38e9b3a75bf4168d4 100644
--- a/chrome/utility/chrome_content_utility_client.cc
+++ b/chrome/utility/chrome_content_utility_client.cc
@@ -223,8 +223,11 @@ DWORD WINAPI UtilityProcess_GetFontDataPatch(
     if (GetObject(font, sizeof(LOGFONT), &logfont)) {
       std::vector<char> font_data;
       if (UtilityThread::current()->Send(
-              new ChromeUtilityHostMsg_PreCacheFont(logfont)))
+              new ChromeUtilityHostMsg_PreCacheFont(logfont))) {
         rv = GetFontData(hdc, table, offset, buffer, length);
+        UtilityThread::current()->Send(
+            new ChromeUtilityHostMsg_ReleaseCachedFonts());
+      }
     }
   }
   return rv;