Pass font prefs to WebKit even if they are the empty string.

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 343 matching lines @@
 }
 
 // Fills |map| with the per-script font prefs under path |map_name|.
 void FillFontFamilyMap(const PrefService* prefs,
                        const char* map_name,
                        WebPreferences::ScriptFontFamilyMap* map) {
   for (size_t i = 0; i < prefs::kWebKitScriptsForFontFamilyMapsLength; ++i) {
     const char* script = prefs::kWebKitScriptsForFontFamilyMaps[i];
     std::string pref_name = base::StringPrintf("%s.%s", map_name, script);
     std::string font_family = prefs->GetString(pref_name.c_str());
-    if (!font_family.empty())
-      (*map)[script] = UTF8ToUTF16(font_family);
+    (*map)[script] = UTF8ToUTF16(font_family);
   }
 }
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 int GetCrashSignalFD(const CommandLine& command_line) {
   if (command_line.HasSwitch(switches::kExtensionProcess)) {
     ExtensionCrashHandlerHostLinux* crash_handler =
         ExtensionCrashHandlerHostLinux::GetInstance();
     return crash_handler->GetDeathSignalSocket();
   }
@@ skipping 1473 matching lines @@
     partition_id = extension->id();
   }
 
   // Enforce that IsValidStoragePartitionId() implementation stays in sync.
   DCHECK(IsValidStoragePartitionId(browser_context, partition_id));
   return partition_id;
 }
 
 
 }  // namespace chrome