Reland "Replace Chrome IPC with Mojo IPC for querying BatteryStatus service"

content/renderer/shared_memory_seqlock_reader.h

 // 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.
 
 #ifndef CONTENT_RENDERER_SHARED_MEMORY_SEQLOCK_READER_H_
 #define CONTENT_RENDERER_SHARED_MEMORY_SEQLOCK_READER_H_
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "content/common/shared_memory_seqlock_buffer.h"
 
+namespace content {
 namespace internal {
 
 class SharedMemorySeqLockReaderBase  {
  protected:
   SharedMemorySeqLockReaderBase();
   virtual ~SharedMemorySeqLockReaderBase();
 
   void* InitializeSharedMemory(
       base::SharedMemoryHandle shared_memory_handle,
       size_t buffer_size);
 
   bool FetchFromBuffer(content::OneWriterSeqLock* seqlock, void* final,
       void* temp, void* from, size_t size);
 
   static const int kMaximumContentionCount = 10;
   base::SharedMemoryHandle renderer_shared_memory_handle_;
   scoped_ptr<base::SharedMemory> renderer_shared_memory_;
 };
 
 }  // namespace internal
 
-namespace content {
-
 // Template argument Data should be a pod-like structure only containing
 // data fields, such that it is copyable by memcpy method.
 template<typename Data>
 class SharedMemorySeqLockReader
     : private internal::SharedMemorySeqLockReaderBase {
  public:
   SharedMemorySeqLockReader() : buffer_(0) { }
   virtual ~SharedMemorySeqLockReader() { }
 
   bool GetLatestData(Data* data) {
@@ skipping 16 matching lines @@
  private:
   SharedMemorySeqLockBuffer<Data>* buffer_;
   scoped_ptr<Data> temp_buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedMemorySeqLockReader);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_SHARED_MEMORY_SEQLOCK_READER_H_