Get rid of base::SharedMemory::NULLHandle();

ppapi/proxy/serialized_handle.h

 // Copyright (c) 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.
 
 #ifndef PPAPI_PROXY_SERIALIZED_HANDLES_H_
 #define PPAPI_PROXY_SERIALIZED_HANDLES_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 76 matching lines @@
     type_ = SHARED_MEMORY;
     shm_handle_ = handle;
     size_ = size;
 
     descriptor_ = IPC::InvalidPlatformFileForTransit();
   }
   void set_socket(const IPC::PlatformFileForTransit& socket) {
     type_ = SOCKET;
     descriptor_ = socket;
 
-    shm_handle_ = base::SharedMemory::NULLHandle();
+    shm_handle_ = base::SharedMemoryHandle();
     size_ = 0;
   }
   void set_file_handle(const IPC::PlatformFileForTransit& descriptor,
                        int32_t open_flags,
                        PP_Resource file_io) {
     type_ = FILE;
 
     descriptor_ = descriptor;
-    shm_handle_ = base::SharedMemory::NULLHandle();
+    shm_handle_ = base::SharedMemoryHandle();
     size_ = 0;
     open_flags_ = open_flags;
     file_io_ = file_io;
   }
-  void set_null_shmem() {
-    set_shmem(base::SharedMemory::NULLHandle(), 0);
-  }
+  void set_null_shmem() { set_shmem(base::SharedMemoryHandle(), 0); }
   void set_null_socket() {
     set_socket(IPC::InvalidPlatformFileForTransit());
   }
   void set_null_file_handle() {
     set_file_handle(IPC::InvalidPlatformFileForTransit(), 0, 0);
   }
   bool IsHandleValid() const;
 
   Header header() const {
     return Header(type_, size_, open_flags_, file_io_);
@@ skipping 26 matching lines @@
   // The following fields are valid if type == FILE.
   int32_t open_flags_;
   // This is non-zero if file writes require quota checking.
   PP_Resource file_io_;
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_SERIALIZED_HANDLES_H_