Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

content/browser/gpu/shader_disk_cache.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 "content/browser/gpu/shader_disk_cache.h"
 
 #include "base/threading/thread_checker.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/cache_type.h"
@@ skipping 511 matching lines @@
     return;
   }
   is_initialized_ = true;
 
   int rv = disk_cache::CreateCacheBackend(
       net::SHADER_CACHE,
       net::CACHE_BACKEND_BLOCKFILE,
       cache_path_.Append(kGpuCachePath),
       max_cache_size_,
       true,
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE),
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE).get(),
       NULL,
       &backend_,
       base::Bind(&ShaderDiskCache::CacheCreatedCallback, this));
 
   if (rv == net::OK)
     cache_available_ = true;
 }
 
 void ShaderDiskCache::Cache(const std::string& key, const std::string& shader) {
   if (!cache_available_)
@@ skipping 66 matching lines @@
     const net::CompletionCallback& callback) {
   if (entry_map_.empty()) {
     return net::OK;
   }
   cache_complete_callback_ = callback;
   return net::ERR_IO_PENDING;
 }
 
 }  // namespace content