Further clean up pepper's use of SharedMemory.

content/renderer/pepper/renderer_ppapi_host_impl.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/renderer/pepper/renderer_ppapi_host_impl.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 216 matching lines @@
     // process mode (i.e., the remote side must cloes the handle).
     return BrokerGetFileHandleForProcess(
         handle, base::GetCurrentProcId(), should_close_source);
   }
   return dispatcher_->ShareHandleWithRemote(handle, should_close_source);
 }
 
 base::SharedMemoryHandle
 RendererPpapiHostImpl::ShareSharedMemoryHandleWithRemote(
     const base::SharedMemoryHandle& handle) {
-  base::PlatformFile local_platform_file =
-#if defined(OS_POSIX)
-      handle.fd;
-#elif defined(OS_WIN)
-      handle;
-#else
-#error Not implemented.
-#endif
-  return ShareHandleWithRemote(local_platform_file, false);
+  if (!dispatcher_) {
+    DCHECK(is_running_in_process_);
+    return base::SharedMemory::DuplicateHandle(handle);
+  }
+  return dispatcher_->ShareSharedMemoryHandleWithRemote(handle);
 }
 
 bool RendererPpapiHostImpl::IsRunningInProcess() const {
   return is_running_in_process_;
 }
 
 std::string RendererPpapiHostImpl::GetPluginName() const {
   return module_->name();
 }
 
@@ skipping 30 matching lines @@
   PepperPluginInstanceImpl* instance =
       HostGlobals::Get()->GetInstance(pp_instance);
   if (!instance)
     return NULL;
   if (!instance->IsValidInstanceOf(module_))
     return NULL;
   return instance;
 }
 
 }  // namespace content