Fix a type mismatch on Windows caused by r201738.

chrome/common/chrome_paths.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/common/chrome_paths.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/mac/bundle_locations.h"
 #include "base/path_service.h"
@@ skipping 350 matching lines @@
         return false;
       cur = cur.Append(kWidevineCdmBaseDirectory);
       break;
 #endif  // defined(WIDEVINE_CDM_IS_COMPONENT)
     // TODO(xhwang): FILE_WIDEVINE_CDM_ADAPTER has different meanings.
     // In the component case, this is the source adapter. Otherwise, it is the
     // actual Pepper module that gets loaded.
     case chrome::FILE_WIDEVINE_CDM_ADAPTER:
       if (!GetInternalPluginsDirectory(&cur))
         return false;
-      cur = cur.Append(kWidevineCdmAdapterFileName);
+      cur = cur.AppendASCII(kWidevineCdmAdapterFileName);
       break;
 #endif  // defined(WIDEVINE_CDM_AVAILABLE) && defined(ENABLE_PEPPER_CDMS)
     case chrome::FILE_RESOURCES_PACK:
 #if defined(OS_MACOSX) && !defined(OS_IOS)
       if (base::mac::AmIBundled()) {
         cur = base::mac::FrameworkBundlePath();
         cur = cur.Append(FILE_PATH_LITERAL("Resources"))
                  .Append(FILE_PATH_LITERAL("resources.pak"));
         break;
       }
@@ skipping 145 matching lines @@
   return true;
 }
 
 // This cannot be done as a static initializer sadly since Visual Studio will
 // eliminate this object file if there is no direct entry point into it.
 void RegisterPathProvider() {
   PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
 }
 
 }  // namespace chrome