FBTF: Fix more ctor/dtors found by clang plugin.

gpu/command_buffer/client/mapped_memory.h

 // Copyright (c) 2009 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 GPU_COMMAND_BUFFER_CLIENT_MAPPED_MEMORY_H_
 #define GPU_COMMAND_BUFFER_CLIENT_MAPPED_MEMORY_H_
 
 #include <vector>
 
 #include "../common/types.h"
@@ skipping 83 matching lines @@
   int32 shm_id_;
   gpu::Buffer shm_;
   FencedAllocatorWrapper allocator_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryChunk);
 };
 
 // Manages MemoryChucks.
 class MappedMemoryManager {
  public:
-  explicit MappedMemoryManager(CommandBufferHelper* helper)
-      : helper_(helper) {
-  }
+  explicit MappedMemoryManager(CommandBufferHelper* helper);
 
   ~MappedMemoryManager();
 
   // Allocates a block of memory
   // Parameters:
   //   size: size of memory to allocate.
   //   shm_id: pointer to variable to receive the shared memory id.
   //   shm_offset: pointer to variable to receive the shared memory offset.
   // Returns:
   //   pointer to allocated block of memory. NULL if failure.
@@ skipping 20 matching lines @@
   CommandBufferHelper* helper_;
   MemoryChunkVector chunks_;
 
   DISALLOW_COPY_AND_ASSIGN(MappedMemoryManager);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_MAPPED_MEMORY_H_