Use gpu::Mailbox in IPCs instead of std::string

gpu/command_buffer/service/mailbox_manager.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 "gpu/command_buffer/service/mailbox_manager.h"
 
 #include <algorithm>
 
 #include "base/rand_util.h"
 #include "crypto/hmac.h"
+#include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "gpu/command_buffer/service/texture_definition.h"
 
 namespace gpu {
 namespace gles2 {
 
 MailboxName::MailboxName() {
   std::fill(key, key + sizeof(key), 0);
   std::fill(signature, signature + sizeof(signature), 0);
 }
 
+MailboxName::MailboxName(const ::gpu::Mailbox& mailbox) {
+  std::copy(mailbox.name, mailbox.name + sizeof(mailbox.name), key);
+}
+
 MailboxManager::MailboxManager()
     : hmac_(crypto::HMAC::SHA256),
       textures_(std::ptr_fun(&MailboxManager::TargetNameLess)) {
   base::RandBytes(private_key_, sizeof(private_key_));
   bool success = hmac_.Init(
       base::StringPiece(private_key_, sizeof(private_key_)));
   DCHECK(success);
   DCHECK(!IsMailboxNameValid(MailboxName()));
 }
 
@@ skipping 91 matching lines @@
     TextureManager* owner)
     : definition(definition),
       owner(owner) {
 }
 
 MailboxManager::OwnedTextureDefinition::~OwnedTextureDefinition() {
 }
 
 }  // namespace gles2
 }  // namespace gpu