Fix "unreachable code" warnings (MSVC warning 4702) in content/.

content/common/content_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 "content/public/common/content_paths.h"
 
 #include "base/file_util.h"
 #include "base/mac/bundle_locations.h"
 #include "base/path_service.h"
 
@@ skipping 22 matching lines @@
       *result = base::mac::FrameworkBundlePath();
       *result = result->Append("Libraries");
       return true;
 #else
       return PathService::Get(base::DIR_MODULE, result);
 #endif
     }
     default:
       return false;
   }
-
-  return false;
 }
 
 // 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 content