Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

net/disk_cache/simple/simple_backend_impl.cc

 // Copyright (c) 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 "net/disk_cache/simple/simple_backend_impl.h"
 
 #include <algorithm>
 #include <cstdlib>
 
 #include "base/bind.h"
@@ skipping 166 matching lines @@
 SimpleBackendImpl::~SimpleBackendImpl() {
   index_->WriteToDisk();
 }
 
 int SimpleBackendImpl::Init(const CompletionCallback& completion_callback) {
   MaybeCreateSequencedWorkerPool();
 
   worker_pool_ = g_sequenced_worker_pool->GetTaskRunnerWithShutdownBehavior(
       SequencedWorkerPool::CONTINUE_ON_SHUTDOWN);
 
-  index_.reset(new SimpleIndex(MessageLoopProxy::current(), path_,
-                               make_scoped_ptr(new SimpleIndexFile(
-                                   cache_thread_.get(), worker_pool_.get(),
-                                   path_))));
+  index_.reset(
+      new SimpleIndex(MessageLoopProxy::current().get(),
+                      path_,
+                      make_scoped_ptr(new SimpleIndexFile(
+                          cache_thread_.get(), worker_pool_.get(), path_))));
   index_->ExecuteWhenReady(base::Bind(&RecordIndexLoad,
                                       base::TimeTicks::Now()));
 
   InitializeIndexCallback initialize_index_callback =
       base::Bind(&SimpleBackendImpl::InitializeIndex,
                  base::Unretained(this),
                  completion_callback);
   cache_thread_->PostTask(
       FROM_HERE,
       base::Bind(&SimpleBackendImpl::ProvideDirectorySuggestBetterCacheSize,
@@ skipping 180 matching lines @@
   // currently active entry.
   if (key != it->second->key()) {
     it->second->Doom();
     DCHECK_EQ(0U, active_entries_.count(entry_hash));
     return CreateOrFindActiveEntry(key);
   }
   return make_scoped_refptr(it->second.get());
 }
 
 }  // namespace disk_cache