Convert NaCl renderer-browser messages to mojo.

components/nacl/browser/pnacl_host.h

 // 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.
 
 #ifndef COMPONENTS_NACL_BROWSER_PNACL_HOST_H_
 #define COMPONENTS_NACL_BROWSER_PNACL_HOST_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 16 matching lines @@
 class PnaclHostTest;
 class PnaclHostTestDisk;
 class PnaclTranslationCache;
 
 // Shared state (translation cache) and common utilities (temp file creation)
 // for all PNaCl translations. Unless otherwise specified, all methods should be
 // called on the IO thread.
 class PnaclHost {
  public:
   typedef base::Callback<void(base::File)> TempFileCallback;
-  typedef base::Callback<void(const base::File&, bool is_hit)> NexeFdCallback;
+  typedef base::Callback<void(base::File, bool is_hit)> NexeFdCallback;
 
   // Gets the PnaclHost singleton instance (creating it if necessary).
   // PnaclHost is a singleton because there is only one translation cache, and
   // so that the BrowsingDataRemover can clear it even if no translation has
   // ever been started.
   static PnaclHost* GetInstance();
 
   // The PnaclHost instance is intentionally leaked on shutdown. DeInitIfSafe()
   // attempts to cleanup |disk_cache_| earlier, but if it fails to do so in
   // time, it will be too late when AtExitManager kicks in anway so subscribing
@@ skipping 15 matching lines @@
   // Returns by calling |cb| with a PlatformFile handle.
   // If the nexe is already present
   // in the cache, |is_hit| is set to true and the contents of the nexe
   // have been copied into the temporary file. Otherwise |is_hit| is set to
   // false and the temporary file will be writeable.
   // Currently the implementation is a stub, which always sets is_hit to false
   // and calls the implementation of CreateTemporaryFile.
   // If the cache request was a miss, the caller is expected to call
   // TranslationFinished after it finishes translation to allow the nexe to be
   // stored in the cache.
-  // The returned temp fd may be closed at any time by PnaclHost, so it should
-  // be duplicated (e.g. with IPC::GetPlatformFileForTransit) before the
-  // callback returns.
   // If |is_incognito| is true, the nexe will not be stored
   // in the cache, but the renderer is still expected to call
   // TranslationFinished.
   void GetNexeFd(int render_process_id,
                  int render_view_id,
                  int pp_instance,
                  bool is_incognito,
                  const nacl::PnaclCacheInfo& cache_info,
                  const NexeFdCallback& cb);
 
@@ skipping 98 matching lines @@
   base::FilePath temp_dir_;
   std::unique_ptr<PnaclTranslationCache> disk_cache_;
   PendingTranslationMap pending_translations_;
   base::ThreadChecker thread_checker_;
   DISALLOW_COPY_AND_ASSIGN(PnaclHost);
 };
 
 }  // namespace pnacl
 
 #endif  // COMPONENTS_NACL_BROWSER_PNACL_HOST_H_