Pull string constants into separate .cc for split dll build

tools/win/split_link/split_link.py

 # Copyright 2013 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.
 
 """Takes the same arguments as Windows link.exe, and a definition of libraries
 to split into subcomponents. Does multiple passes of link.exe invocation to
 determine exports between parts and generates .def and import libraries to
 cause symbols to be available to other parts."""
 
 import _winreg
@@ skipping 360 matching lines @@
     data_exports = 0
     for i, part in enumerate(unresolved_by_part):
       for export in part:
         if IsDataDefinition(export):
           print 'part %d contains data export: %s (aka %s)' % (
               i, Unmangle(export), export)
           data_exports += 1
     deffiles = GenerateDefFiles(unresolved_by_part)
     import_libs = BuildImportLibs(flags, inputs_by_part, deffiles)
   else:
-    return 1
-
-  if data_exports:
-    print 'Data exports found, see report above.'
-    print('These cannot be exported, and must be either duplicated to the '
-          'target DLL, or wrapped in a function.')
+    if data_exports:
+      print '%d data exports found, see report above.' % data_exports
+      print('These cannot be exported, and must be either duplicated to the '
+            'target DLL (if constant), or wrapped in a function.')
     return 1
 
   mt_exe = GetMtPath()
   for i, dll in enumerate(dlls):
     Log('embedding manifest in %s' % dll)
     args = [mt_exe, '-nologo', '-manifest']
     args.append(ManifestNameForIndex(i))
     args.append(description['manifest'])
     args.append('-outputresource:%s;2' % dll)
     subprocess.check_call(args)
 
   Log('built %r' % dlls)
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())