Move OneWriterSeqLock and SharedMemorySeqLockBuffer from content/ to device/base/synchronization

content/renderer/shared_memory_seqlock_reader.cc

Index: content/renderer/shared_memory_seqlock_reader.cc
diff --git a/content/renderer/shared_memory_seqlock_reader.cc b/content/renderer/shared_memory_seqlock_reader.cc
index 2727aa52f99fd015c5c9d51a9cf026c8040d4d9b..894ddbd1cd11c486c96ed6ed6b5f1ee4581bc21e 100644
--- a/content/renderer/shared_memory_seqlock_reader.cc
+++ b/content/renderer/shared_memory_seqlock_reader.cc
@@ -26,9 +26,11 @@ SharedMemorySeqLockReaderBase::InitializeSharedMemory(
 }
 
 bool SharedMemorySeqLockReaderBase::FetchFromBuffer(
-    content::OneWriterSeqLock* seqlock, void* final, void* temp, void* from,
+    device::OneWriterSeqLock* seqlock,
+    void* final,
+    void* temp,
+    void* from,
     size_t size) {
-
   if (!base::SharedMemory::IsHandleValid(renderer_shared_memory_handle_))
     return false;