bug 711357 - release the CGFontRef after creating our font entry (which holds its own reference). r=jdaggett

gfx/thebes/gfxMacPlatformFontList.mm

@@ -1004,6 +1004,7 @@ gfxMacPlatformFontList::MakePlatformFontCG(const gfxProxyFontEntry *aProxyEntry,
                                      aProxyEntry->mItalic ?
                                          FONT_STYLE_ITALIC : FONT_STYLE_NORMAL,
                                      true, false));
+    ::CFRelease(fontRef);
 
     // if succeeded and font cmap is good, return the new font
     if (newFontEntry->mIsValid && NS_SUCCEEDED(newFontEntry->ReadCMAP())) {