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

content/browser/gpu/gpu_process_host.cc

Index: content/browser/gpu/gpu_process_host.cc
diff --git a/content/browser/gpu/gpu_process_host.cc b/content/browser/gpu/gpu_process_host.cc
index 323335e654ed2bd1508b444a7b9e3b01cd0ded38..078b8a2fc03998e04d9269609c8a5396e0a2ea98 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -1254,7 +1254,7 @@ void GpuProcessHost::CreateChannelCache(int32 client_id, size_t cache_size) {
 
   scoped_refptr<ShaderDiskCache> cache =
       ShaderCacheFactory::GetInstance()->Get(client_id);
-  if (!cache)
+  if (!cache.get())
     return;
 
   cache->set_max_cache_size(cache_size);