Revert of ppapi: PPB_VpnProvider: Implement Resource Host

ppapi/shared_impl/vpn_provider_util.cc

 // Copyright 2016 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/shared_impl/vpn_provider_util.h"
 
 namespace ppapi {
 
 VpnProviderSharedBuffer::VpnProviderSharedBuffer(
     uint32_t capacity,
     uint32_t packet_size,
     std::unique_ptr<base::SharedMemory> shm)
     : capacity_(capacity),
-      max_packet_size_(packet_size),
+      packet_size_(packet_size),
       shm_(std::move(shm)),
       available_(capacity, true) {
   DCHECK(this->shm_);
 }
 
 VpnProviderSharedBuffer::~VpnProviderSharedBuffer() {}
 
 bool VpnProviderSharedBuffer::GetAvailable(uint32_t* id) {
   for (uint32_t i = 0; i < capacity_; i++) {
     if (available_[i]) {
@@ skipping 12 matching lines @@
     return;
   }
   available_[id] = value;
 }
 
 void* VpnProviderSharedBuffer::GetBuffer(uint32_t id) {
   if (id >= capacity_) {
     NOTREACHED();
     return nullptr;
   }
-  return reinterpret_cast<char*>(shm_->memory()) + max_packet_size_ * id;
+  return reinterpret_cast<char*>(shm_->memory()) + packet_size_ * id;
 }
 
 base::SharedMemoryHandle VpnProviderSharedBuffer::GetHandle() {
   return shm_->handle();
 }
 
-}  // namespace ppapi
+}  // namespace ppapi