gpu: Add out-of-line copy ctors for complex classes.

gpu/command_buffer/service/vertex_attrib_manager.h

 // Copyright (c) 2012 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_SERVICE_VERTEX_ATTRIB_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_VERTEX_ATTRIB_MANAGER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 15 matching lines @@
 class VertexArrayManager;
 
 // Info about a Vertex Attribute. This is used to track what the user currently
 // has bound on each Vertex Attribute so that checking can be done at
 // glDrawXXX time.
 class GPU_EXPORT VertexAttrib {
  public:
   typedef std::list<VertexAttrib*> VertexAttribList;
 
   VertexAttrib();
+  VertexAttrib(const VertexAttrib& other);
   ~VertexAttrib();
 
   // Returns true if this VertexAttrib can access index.
   bool CanAccess(GLuint index) const;
 
   Buffer* buffer() const { return buffer_.get(); }
 
   GLsizei offset() const {
     return offset_;
   }
@@ skipping 253 matching lines @@
 
   // Service side vertex array object id.
   GLuint service_id_;
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_VERTEX_ATTRIB_MANAGER_H_