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

ppapi/proxy/ppb_graphics_3d_proxy.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 "ppapi/proxy/ppb_graphics_3d_proxy.h"
 
 #include "base/numerics/safe_conversions.h"
 #include "build/build_config.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "gpu/command_buffer/common/command_buffer.h"
@@ skipping 254 matching lines @@
     gpu::Capabilities* capabilities,
     SerializedHandle* shared_state,
     gpu::CommandBufferId* command_buffer_id) {
   shared_state->set_null_shmem();
 
   thunk::EnterResourceCreation enter(instance);
 
   if (!enter.succeeded())
     return;
 
-  base::SharedMemoryHandle handle = base::SharedMemory::NULLHandle();
+  base::SharedMemoryHandle handle;
   result->SetHostResource(
       instance, enter.functions()->CreateGraphics3DRaw(
                     instance, share_context.host_resource(), attrib_helper,
                     capabilities, &handle, command_buffer_id));
   if (!result->is_null()) {
     shared_state->set_shmem(TransportSHMHandle(dispatcher(), handle),
                             sizeof(gpu::CommandBuffer::State));
   }
 }
 
@@ skipping 107 matching lines @@
 void PPB_Graphics3D_Proxy::SendSwapBuffersACKToPlugin(
     int32_t result,
     const HostResource& context) {
   dispatcher()->Send(new PpapiMsg_PPBGraphics3D_SwapBuffersACK(
       API_ID_PPB_GRAPHICS_3D, context, result));
 }
 #endif  // !defined(OS_NACL)
 
 }  // namespace proxy
 }  // namespace ppapi