[PPAPI] Moving pp::VarResource_Dev API into pp::Var (now stable).

ppapi/cpp/dev/var_resource_dev.cc

-// 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.
-
-#include "ppapi/cpp/dev/var_resource_dev.h"
-
-#include "ppapi/c/dev/ppb_var_resource_dev.h"
-#include "ppapi/cpp/logging.h"
-#include "ppapi/cpp/module_impl.h"
-
-namespace pp {
-
-namespace {
-
-template <> const char* interface_name<PPB_VarResource_Dev_0_1>() {
-  return PPB_VAR_RESOURCE_DEV_INTERFACE_0_1;
-}
-
-}  // namespace
-
-VarResource_Dev::VarResource_Dev(const pp::Resource& resource) : Var(Null()) {
-  if (!has_interface<PPB_VarResource_Dev_0_1>()) {
-    PP_NOTREACHED();
-    return;
-  }
-
-  // Note: Var(Null()) sets is_managed_ to true, so |var_| will be properly
-  // released upon destruction.
-  var_ = get_interface<PPB_VarResource_Dev_0_1>()->VarFromResource(
-      resource.pp_resource());
-}
-
-VarResource_Dev::VarResource_Dev(const Var& var) : Var(var) {
-  if (!var.is_resource()) {
-    PP_NOTREACHED();
-
-    // This takes care of releasing the reference that this object holds.
-    Var::operator=(Var(Null()));
-  }
-}
-
-VarResource_Dev::VarResource_Dev(const VarResource_Dev& other) : Var(other) {}
-
-VarResource_Dev::~VarResource_Dev() {}
-
-VarResource_Dev& VarResource_Dev::operator=(const VarResource_Dev& other) {
-  Var::operator=(other);
-  return *this;
-}
-
-Var& VarResource_Dev::operator=(const Var& other) {
-  if (other.is_resource()) {
-    Var::operator=(other);
-  } else {
-    PP_NOTREACHED();
-    Var::operator=(Var(Null()));
-  }
-  return *this;
-}
-
-pp::Resource VarResource_Dev::AsResource() {
-  if (!has_interface<PPB_VarResource_Dev_0_1>())
-    return pp::Resource();
-
-  return pp::Resource(
-      pp::PASS_REF,
-      get_interface<PPB_VarResource_Dev_0_1>()->VarToResource(var_));
-}
-
-}  // namespace pp